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Unwavering Chervil Crimson

#b73425
Notes

Unwavering Chervil Crimson (#B73425) 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 (6°, 66%, 43%) 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
#b73425
RGB
rgb(183, 52, 37)
HSL
hsl(6, 66%, 43%)
HWB
hwb(6 15% 28%)
OKLCH
oklch(52.2% 0.170 30.2)
P3
color(display-p3 0.6618 0.2451 0.1807)
HSV
hsv(6, 80%, 72%)
LAB
lab(42.25% 51.65 39.47)
LCH
lch(42.25% 65.01 37.38)
CMYK
cmyk(0%, 72%, 80%, 28%)

Etymology

Unwavering
adjective

Old English un- (negation) plus wafrian (to flicker). As a color modifier, unwavering implies a saturated-and-constant quality where the hue maintains its full strength without flicker or shift. Sits at the bold-and-firm end of the grid, parallel to steadfast and firm in usage.

Chervil
modifier

Latin chaerephylla, delicate-French-fines-herbes. As a color modifier, chervil implies a delicate-French-fines-herbes-and-anise-leaf quality, the visual register of French-fines-herbes-and-Lyon-bistro-chervil hand-delicate-French-fines-herbes-and-anise-leaf French-fines-herbes-and-Lyon-bistro-chervil-and-spring-vinaigrette chervil-and-delicate-French-fines-herbes surfaces under French-fines-herbes-and-Lyon-bistro-chervil-and-spring-vinaigrette Lyon-bouchon-and-Loire-Valley-spring spring-bistro-light. Sits at the modifier-and-flavor end of the grid, parallel to chive and dill 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.

#b73425
Original
#5b5122
Protanopia
#7b6e1f
Deuteranopia
#ca0032
Tritanopia
#4f4f4f
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
5.95:1
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
3.53:1

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
##B73425
Display P3
Display P3
color(display-p3 0.6618 0.2451 0.1807)
P3 has subtle headroomOKLCH chroma 0.170

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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