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Earnest Odin Ruby

#91081a
Notes

Earnest Odin Ruby (#91081A) is a deep red with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (352°, 90%, 30%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. For a confident two-color system, pair it with its complementary teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#91081a
RGB
rgb(145, 8, 26)
HSL
hsl(352, 90%, 30%)
HWB
hwb(352 3% 43%)
OKLCH
oklch(41.7% 0.164 23.9)
HSV
hsv(352, 94%, 57%)
LAB
lab(30.08% 51.86 30.90)
LCH
lch(30.08% 60.37 30.79)
CMYK
cmyk(0%, 94%, 82%, 43%)

Etymology

Earnest
adjective

Old English eornost, seriousness, zeal. Used as a color modifier since the nineteenth century for hues that read as committed but unshowy — the working blues of denim, the deep greens of Quaker meetinghouses. Sits in the bold-and-quiet corner of the grid, slightly less luminous than resolute and slightly less institutional than imperial.

Odin
modifier

Old Norse Óðinn, all-father-of-the-Aesir. As a color modifier, odin implies a one-eyed-and-raven-and-runic-wisdom quality, the visual register of Norse-all-father-Odin-and-Yggdrasil hand-one-eyed-and-raven-and-runic-wisdom Norse-all-father-Odin-and-Yggdrasil-and-Asgard odin-and-one-eyed-and-raven-and-runic-wisdom surfaces under Norse-all-father-Odin-and-Yggdrasil-and-Asgard Hugin-and-Munin-raven-and-Mimir-well runic-wisdom-light. Sits at the modifier-and-myth end of the grid, parallel to thor and freya in usage.

Ruby
noun

From the Latin ruber — simply, red. The gemstone is a chromium-tinged corundum, harder than anything in nature except diamond, and so saturated that a fine Burmese pigeon's blood ruby at auction outpaces a comparable diamond by weight. The color borrows the gem's confidence: a clear, glassy red without the brown of garnet or the blue of crimson.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#91081a
Original
#3b3519
Protanopia
#5b5114
Deuteranopia
#a00012
Tritanopia
#262626
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon White
9.32:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.25:1

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