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Bold Zest Crimson

#b22621
Notes

Bold Zest Crimson (#B22621) 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 (2°, 69%, 41%) 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
#b22621
RGB
rgb(178, 38, 33)
HSL
hsl(2, 69%, 41%)
HWB
hwb(2 13% 30%)
OKLCH
oklch(50.0% 0.177 27.9)
HSV
hsv(2, 81%, 70%)
LAB
lab(39.52% 54.73 38.60)
LCH
lch(39.52% 66.97 35.20)
CMYK
cmyk(0%, 79%, 81%, 30%)

Etymology

Bold
adjective

Old English beald, brave, courageous — a quality word that crossed over to color in the late seventeenth century. Bold describes a color that asserts itself: high saturation combined with mid lightness, where the hue presents itself without compromise. Sits at the center of the bold-bucket grid, near strong and rich. Closer to a presence word than a pigment word.

Zest
modifier

French zeste, citrus-peel-and-bright-tang. As a color modifier, zest implies a bright-citrus-peel-and-aromatic-oil quality, the visual register of Provençal-and-Sicilian-citrus-zest hand-bright-citrus-peel-and-aromatic-oil Provençal-and-Sicilian-citrus-zest-and-Mediterranean-bergamot zest-and-bright-citrus-peel surfaces under Provençal-and-Sicilian-citrus-zest-and-Mediterranean-bergamot Menton-and-Sicily-and-Calabria-citrus-grove citrus-grove-light. Sits at the modifier-and-flavor end of the grid, parallel to tang and bergamot 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.

#b22621
Original
#524a1e
Protanopia
#75681a
Deuteranopia
#c40027
Tritanopia
#434343
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
6.58:1
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
3.19:1

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