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Resonant Bow Crimson

#a72019
Notes

Resonant Bow Crimson (#A72019) 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 (3°, 74%, 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#a72019
RGB
rgb(167, 32, 25)
HSL
hsl(3, 74%, 38%)
HWB
hwb(3 10% 35%)
OKLCH
oklch(47.4% 0.172 28.7)
HSV
hsv(3, 85%, 65%)
LAB
lab(36.60% 52.95 39.33)
LCH
lch(36.60% 65.96 36.60)
CMYK
cmyk(0%, 81%, 85%, 35%)

Etymology

Resonant
adjective

Latin resonāns, echoing — present-participle of resonate, sharing root with sonance. As a color modifier, resonant implies a saturated-and-deep-vibrating quality where the hue carries low-frequency visual richness. Sits at the bold-and-resonant end of the grid, parallel to sonorous and resounding in usage.

Bow
modifier

Old Norse bógr, bow / shoulder. As a color modifier, bow implies a ship's-front-prow quality, the visual register of Royal-Navy-and-merchant-marine-bow hand-built ship's-front-prow-and-figurehead bow-and-cutwater maritime-architecture surfaces under ship's-front-bow-and-prow maritime-headway light. Sits at the modifier-and-nautical end of the grid, parallel to prow and hull in usage.

Crimson
noun

From the Old Spanish cremesin, itself from the Arabic qirmiz — the kermes scale insect, dried and ground into a brilliant carmine dye prized in the medieval Mediterranean. For centuries the most expensive red on a draper's shelf, reserved for cardinals, kings, and the cloth that gave English the word crimson. Cooler than scarlet, deeper than rose; the color of pomegranate seeds and a serious occasion.

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.

#a72019
Original
#4c4316
Protanopia
#6d6111
Deuteranopia
#b90020
Tritanopia
#3c3c3c
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
7.33:1
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
2.86:1

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