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Cavalier Coquelicot

#b40803
Notes

Cavalier Coquelicot (#B40803) 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 (2°, 97%, 36%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#b40803
RGB
rgb(180, 8, 3)
HSL
hsl(2, 97%, 36%)
HWB
hwb(2 1% 29%)
OKLCH
oklch(48.6% 0.196 29.4)
HSV
hsv(2, 98%, 71%)
LAB
lab(37.64% 60.78 50.63)
LCH
lch(37.64% 79.11 39.79)
CMYK
cmyk(0%, 96%, 98%, 29%)

Etymology

Cavalier
adjective

Italian cavaliere, horseman / knight via Latin caballārius. As a color modifier, cavalier implies a saturated-and-chivalrous-and-aristocratic quality, the deep-rich color of English-Civil-War royalist Cavalier military-faction velvet-and-lace-and-feathered-hat livery. Sits at the bold-and-chivalrous end of the grid, parallel to gallant and knightly.

Coquelicot
noun

The French word for poppyPapaver rhoeas — the wild red flower of European cereal fields and the unifying flower of French Impressionist painting (especially Monet's Coquelicots, Argenteuil). The color refers to a freshly opened poppy in a Provençal field: a saturated, slightly cool red with the satin finish of single-day petal. Brighter than scarlet, slightly cooler than tomato.

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.

#b40803
Original
#4c4200
Protanopia
#726500
Deuteranopia
#c7000d
Tritanopia
#2c2c2c
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
7.05:1
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
2.98:1

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Canvas