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Substantial Chervil Crimson

#ad1626
Notes

Substantial Chervil Crimson (#AD1626) 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 (354°, 77%, 38%) places it in the highly saturated band at a mid lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#ad1626
RGB
rgb(173, 22, 38)
HSL
hsl(354, 77%, 38%)
HWB
hwb(354 9% 32%)
OKLCH
oklch(48.0% 0.182 23.5)
HSV
hsv(354, 87%, 68%)
LAB
lab(37.12% 57.50 32.93)
LCH
lch(37.12% 66.27 29.80)
CMYK
cmyk(0%, 87%, 78%, 32%)

Etymology

Substantial
adjective

Latin substantia, substance — adjectival suffix -al, derived from sub-stāre (to stand under). As a color modifier, substantial implies a saturated-and-weighty-and-material quality where the hue carries visual mass and presence. Sits at the bold-and-weighty end of the grid, parallel to weighty and hefty 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

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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.

#ad1626
Original
#4a4325
Protanopia
#6e6220
Deuteranopia
#bf001f
Tritanopia
#373737
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
7.19:1
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
2.92:1

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