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Crepuscular Coquelicot

#4c1b33
Notes

Crepuscular Coquelicot (#4C1B33) is a deep magenta with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (331°, 48%, 20%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#4c1b33
RGB
rgb(76, 27, 51)
HSL
hsl(331, 48%, 20%)
HWB
hwb(331 11% 70%)
OKLCH
oklch(30.5% 0.080 352.4)
P3
color(display-p3 0.2748 0.1177 0.1970)
HSV
hsv(331, 64%, 30%)
LAB
lab(18.19% 26.13 -4.14)
LCH
lch(18.19% 26.45 351.00)
CMYK
cmyk(0%, 64%, 33%, 70%)

Etymology

Crepuscular
adjective

Latin crepusculāris, of twilight — derived from crepusculum (twilight). As a color modifier, crepuscular implies the deep blue-violet darkness of civil-twilight period between sunset and nightfall. Sits at the deep-and-cool end of the grid, where the hue carries the Belt of Venus atmospheric-scattering quality of clear-sky horizon at dusk.

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.

#4c1b33
Original
#222734
Protanopia
#2f3032
Deuteranopia
#521824
Tritanopia
#272727
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
13.89:1
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
1.51:1

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
##4C1B33
Display P3
Display P3
color(display-p3 0.2748 0.1177 0.1970)
P3 has subtle headroomOKLCH chroma 0.080

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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