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Earnest Glint Ruby

#a81c2c
Notes

Earnest Glint Ruby (#A81C2C) is a true 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 (353°, 71%, 38%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#a81c2c
RGB
rgb(168, 28, 44)
HSL
hsl(353, 71%, 38%)
HWB
hwb(353 11% 34%)
OKLCH
oklch(47.5% 0.173 21.9)
P3
color(display-p3 0.6047 0.1689 0.1913)
HSV
hsv(353, 83%, 66%)
LAB
lab(36.63% 54.97 28.46)
LCH
lch(36.63% 61.90 27.37)
CMYK
cmyk(0%, 83%, 74%, 34%)

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.

Glint
modifier

Middle English glent, to-shine-or-glance. As a color modifier, glint implies a brief-and-glancing-and-pinpoint-shine quality, the visual register of Scottish-burn-and-anvil-spark-glint hand-brief-and-glancing-and-pinpoint-shine Scottish-burn-and-anvil-spark-and-flint-strike glinted-and-brief-and-glancing surfaces under Scottish-burn-and-anvil-spark-and-flint-strike sun-on-water-and-forge-spark fleeting-glance-light. Sits at the modifier-and-mood end of the grid, parallel to gleam and spark 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.

#a81c2c
Original
#49432b
Protanopia
#6b6127
Deuteranopia
#b90024
Tritanopia
#3b3b3b
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
7.32:1
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
2.87:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##A81C2C
Display P3
Display P3
color(display-p3 0.6047 0.1689 0.1913)
P3 has subtle headroomOKLCH chroma 0.173

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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