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Earnest Frieze Ruby

#cd2a31
Notes

Earnest Frieze Ruby (#CD2A31) is a true red with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (357°, 66%, 48%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#cd2a31
RGB
rgb(205, 42, 49)
HSL
hsl(357, 66%, 48%)
HWB
hwb(357 16% 20%)
OKLCH
oklch(55.4% 0.198 24.8)
HSV
hsv(357, 80%, 80%)
LAB
lab(45.44% 62.06 37.43)
LCH
lch(45.44% 72.47 31.10)
CMYK
cmyk(0%, 80%, 76%, 20%)

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.

Frieze
modifier

Old French frise, band-of-decoration. As a color modifier, frieze implies a horizontal-decorative-band quality, the visual register of Greek-Parthenon-and-Roman-Imperial-frieze hand-carved Doric-and-Ionic-and-Corinthian classical-decorative-frieze architectural surfaces under classical-frieze decorative-band light. Sits at the modifier-and-architecture end of the grid, parallel to eave and plinth 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.

#cd2a31
Original
#5e552f
Protanopia
#86782a
Deuteranopia
#e2002f
Tritanopia
#4d4d4d
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).
AAon White
5.29:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.97:1

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