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Tomblike Coquille

#56033c
Notes

Tomblike Coquille (#56033C) is a deep magenta 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 (319°, 93%, 17%) places it in the highly saturated band at a dark 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#56033c
RGB
rgb(86, 3, 60)
HSL
hsl(319, 93%, 17%)
HWB
hwb(319 1% 66%)
OKLCH
oklch(30.4% 0.125 345.7)
HSV
hsv(319, 97%, 34%)
LAB
lab(17.32% 39.71 -11.62)
LCH
lch(17.32% 41.38 343.69)
CMYK
cmyk(0%, 97%, 30%, 66%)

Etymology

Tomblike
adjective

Greek tymbos, tomb — adjectival suffix -like. As a color modifier, tomblike implies the deep-and-funereal-and-sepulchral quality of Etruscan-and-Egyptian rock-cut royal-tomb interiors, particularly the Valley-of-the-Kings and Cerveteri-necropolis hand-carved chamber-painting walls. Sits at the deep-and-funereal end of the grid, parallel to sepulchral and crypted.

Coquille
noun

French coquille, shell — particularly the coquille Saint-Jacques (Pecten maximus, scallop shell) whose interior surface displays a deep-magenta-to-pink iridescent nacre. Coquille color refers to a freshly opened Pecten maximus shell-interior in raking light: a saturated, slightly cool deep magenta with the iridescent satin finish of structurally colored aragonite-nacre. The shell is the heraldic symbol of Saint James of Compostela.

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.

#56033c
Original
#12223d
Protanopia
#2b2f3a
Deuteranopia
#5d0120
Tritanopia
#191919
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
14.25:1
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
1.47:1

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