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Azure Nocturne Dust
Color detail

Azure Nocturne Dust

Blue · Hue 200
Hex
#263740
RGB
rgb(38, 55, 64)
HSL
hsl(200, 26%, 20%)
CMYK
cmyk(41%, 14%, 0%, 75%)
Metrics
S 26% · L 20%
Contrast (WCAG)
on white
12.3:1AA
on black
1.7:1Fail
Save to journalSign in to saveStart palette from thisRecent trail

About this color

Azure Nocturne Dust (#263740) belongs to the blue family — hue 200°, 26% saturation, 20% lightness. Copy the hex, RGB, or HSL value above, or paste the CSS custom property below into your stylesheet to reference this color directly.

CSS
:root {
  --colorarchive-azure-nocturne-dust: #263740;
  --colorarchive-azure-nocturne-dust-hsl: hsl(200, 26%, 20%);
  --colorarchive-azure-nocturne-dust-rgb: rgb(38, 55, 64);
}

AI Color Names

Let AI suggest alternative poetic names for this color in English and Chinese.

Design Context

AuthoritativeIntellectualLuxurious
Common in

Defense · Aviation · Higher Education

Pairs well with

Gold for prestige, white for sharp readability, electric blue for energy

Design tip

Perfect for dark mode backgrounds and headers. Navy is softer than black and adds character. Pair with bright accents for contrast.

Cultural context ▶

Navy and midnight blue symbolize authority, intelligence, and tradition. The color of uniforms, institutions, and power.

Color Origins

Blue family

The most-loved color on the planet, and the most overused.

Heritage

Blue is the rarest pigment in the natural world — and so, historically, the most expensive. Ultramarine, ground from lapis lazuli mined only in Afghanistan, was worth more than gold in Renaissance Europe; Vermeer's bills were enormous because of how much he used. Egyptian blue (the first synthetic pigment, ~3000 BCE) was lost for centuries and rediscovered in the 19th. Prussian blue (1704) democratized blue overnight; Yves Klein's IKB (1960) re-aristocratized it.

Across cultures

In ancient Egypt blue was the color of the Nile and the heavens — sacred, protective. In China blue-and-white porcelain (qinghua) defined export ceramics for 600 years. In Mediterranean traditions blue wards off the evil eye. In post-WWII America, blue became the corporate default ('IBM blue'); in Japan, indigo (ai) is the centuries-old workwear dye that became the ground tone of an entire textile tradition. Across the world blue is consistently rated the most-liked color — sometimes by 35% margins.

In the wild

Facebook is blue because Mark Zuckerberg is red-green colorblind. IBM's blue dates to 1947. Levi's blue is the natural color of indigo on cotton. Twitter Blue (#1DA1F2) defined social-media blue for a decade before X scrapped it. Pixar's Up famously runs on a single complementary palette built on blue. The blue checkmark, the blue link, the blue 'send' button — blue has become the default color of digital trust, to the point of being a UX cliché.

How it reads

Blue recedes — physically, the eye focuses blue light slightly behind the retina, which makes blue elements feel deep or distant. It reads as trustworthy, calm, corporate, and (at the cool end) cold. Light blues read airy and clinical; mid blues are the default for tech and finance; deep blues read as luxurious or naval. The omnipresence of blue in software is real: most enterprise UIs reach for it because it offends the fewest stakeholders, which is also the reason it can feel like the absence of a real choice.

This particular tone

A dim, atmospheric reading — closer to a colored shadow than a stated hue. Excellent as a near-black on dark UI or as a moody background.

Lightness band: At this depth the hue starts behaving like a neutral — it can substitute for black in many contexts while still carrying a faint chromatic temperature. It pairs especially well with off-whites and warm metallics.

Saturation band: The low saturation pulls this color toward earthen, vintage, or editorial palettes. It reads as confident and grown-up rather than playful, and it tolerates being used in large blocks without becoming visually noisy.

Brands using a similar color

Within the public brand-guidelines reference catalog, these are the closest matches to #263740.

  • Xiaohongshu 小红书neutral
    Slate Text · #333333
    →
  • JD.com 京东neutral
    Slate · #333333
    →
  • Taobao 淘宝neutral
    Slate · #333333
    →

Cultures using a similar color

From the cultural-palette catalog, these regions feature a color close to #263740.

  • JapanIndigo (ai-iro 藍色)
    #22366E · Persicaria tinctoria fermentation dye
    →
  • England (London)Pub Tile Green
    #1F4D2E · Victorian pub interior dado tiling
    →
  • Korea (Obangsaek)Obangsaek Black (흑 / heuk)
    #1F1F1F · North — water element, ink and lacquer
    →

Tonal strip

All lightness levels at this hue and saturation. Click any to navigate.

Palette moves

Instead of stopping at one swatch, use nearby, opposite, and tonal neighbors to branch into a broader palette.

Lighter companion
Azure Shadow Dust
#354E5A · hsl(200, 26%, 28%)
Darker companion
Azure Ink Dust
#1A272D · hsl(200, 26%, 14%)
Complementary counterpoint
Ember Nocturne Dust
#402F26 · hsl(20, 26%, 20%)
Analogous lead
Cobalt Nocturne Dust
#262F40 · hsl(220, 26%, 20%)
Analogous echo
Cyan Nocturne Dust
#26403E · hsl(175, 26%, 20%)
Triadic +120°
Rose Nocturne Dust
#402637 · hsl(320, 26%, 20%)
Triadic +240°
Olive Nocturne Dust
#374026 · hsl(80, 26%, 20%)
Split-comp +150°
Merlot Nocturne Dust
#40262A · hsl(350, 26%, 20%)
Split-comp +210°
Amber Nocturne Dust
#403C26 · hsl(50, 26%, 20%)
Export preview
Base: Azure Nocturne Dust #263740
Lighter companion: Azure Shadow Dust #354E5A
Darker companion: Azure Ink Dust #1A272D
Complementary counterpoint: Ember Nocturne Dust #402F26
Analogous lead: Cobalt Nocturne Dust #262F40
Analogous echo: Cyan Nocturne Dust #26403E
Triadic +120°: Rose Nocturne Dust #402637
Triadic +240°: Olive Nocturne Dust #374026
Split-comp +150°: Merlot Nocturne Dust #40262A
Split-comp +210°: Amber Nocturne Dust #403C26

Compare

See how Azure Nocturne Dust compares side by side with related colors.

vsAzure Shadow DustvsAzure Ink DustvsEmber Nocturne DustvsCobalt Nocturne DustvsCyan Nocturne DustvsRose Nocturne Dust

Nearest neighbors

The closest archive matches by hue, saturation, and lightness.

Search by hex
Nearby match
Azure Nocturne Muted
#2A363C · hsl(200, 18%, 20%)
Nearby match
Azure Nocturne Soft
#223944 · hsl(200, 34%, 20%)
Nearby match
Azure Ink Dust
#1A272D · hsl(200, 26%, 14%)
Nearby match
Steel Nocturne Dust
#263540 · hsl(205, 26%, 20%)
Nearby match
Azure Shadow Dust
#354E5A · hsl(200, 26%, 28%)
Nearby match
Azure Nocturne Faint
#2E3538 · hsl(200, 10%, 20%)

Accessible pairings

Archive colors that meet WCAG contrast standards when paired with this color. Use as text-on-background or background-on-text.

Contrast checker
AAA11.8:1
Ember Veil Faint
#FAFAF9
AAA11.8:1
Ember Veil Muted
#FBFAF9
AAA11.8:1
Ember Veil Dust
#FBF9F9
AAA11.8:1
Ember Veil Soft
#FCF9F8
AAA11.8:1
Ember Veil Clear
#FDF9F7
AAA11.8:1
Ember Veil Vivid
#FEF9F6

Color Vision Simulation

How this color appears with different color vision deficiencies.

Full simulator
Deuteranopia
#2D2C3D
Protanopia
#2E2E3E
Tritanopia
#273C3C
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