Steel Core Muted (#647E90) belongs to the blue family — hue 205°, 18% saturation, 48% lightness. Copy the hex, RGB, or HSL value above, or paste the CSS custom property below into your stylesheet to reference this color directly.
:root { --colorarchive-steel-core-muted: #647E90; --colorarchive-steel-core-muted-hsl: hsl(205, 18%, 48%); --colorarchive-steel-core-muted-rgb: rgb(100, 126, 144); }
Let AI suggest alternative poetic names for this color in English and Chinese.
Banking · Insurance · Enterprise Software
White for clean authority, light orange for warm contrast, dark navy for depth
The backbone of business interfaces. Use for primary actions and navigation. Blue links are the web's universal convention.
Blue is the world's most popular color. It represents trust, competence, and stability across virtually all cultures.
The most-loved color on the planet, and the most overused.
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.
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.
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.
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.
A grounded mid-tone — sober, considered, well-suited to body text accents, editorial layouts, or any context where restraint reads as quality.
Lightness band: At mid-lightness the hue carries its full character. This is the band where most identity colors live: bright enough to be distinctive at small sizes, deep enough to sit cleanly on a white canvas.
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.
Within the public brand-guidelines reference catalog, these are the closest matches to #647E90.
From the cultural-palette catalog, these regions feature a color close to #647E90.
Instead of stopping at one swatch, use nearby, opposite, and tonal neighbors to branch into a broader palette.
Base: Steel Core Muted #647E90 Lighter companion: Steel Radiant Muted #758D9F Darker companion: Steel Velvet Muted #586E7E Complementary counterpoint: Tangerine Core Muted #907764 Analogous lead: Indigo Core Muted #646C90 Analogous echo: Aqua Core Muted #649090 Triadic +120°: Rose Core Muted #906482 Triadic +240°: Olive Core Muted #829064 Split-comp +150°: Crimson Core Muted #906464 Split-comp +210°: Canary Core Muted #908D64
See how Steel Core Muted compares side by side with related colors.
The closest archive matches by hue, saturation, and lightness.
Archive colors that meet WCAG contrast standards when paired with this color. Use as text-on-background or background-on-text.
How this color appears with different color vision deficiencies.
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