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Croft Catacomb

#2c0020
Notes

Croft Catacomb (#2C0020) 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 (316°, 100%, 9%) 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
#2c0020
RGB
rgb(44, 0, 32)
HSL
hsl(316, 100%, 9%)
HWB
hwb(316 0% 83%)
OKLCH
oklch(19.7% 0.085 341.6)
HSV
hsv(316, 100%, 17%)
LAB
lab(5.78% 25.68 -9.54)
LCH
lch(5.78% 27.39 339.62)
CMYK
cmyk(0%, 100%, 27%, 83%)

Etymology

Croft
adjective

Old English croft, small-enclosed-field — adjectival usage of croft. As a color modifier, croft implies a neutral-and-Scottish-Highland-and-traditional quality, the neutral color of Scottish-Highland-Crofter hand-spun-and-hand-woven crofting-and-pasture traditional-craft textile-finish. Sits at the neutral-and-traditional end of the grid, parallel to homespun and folksy in usage.

Catacomb
noun

Greek katà-kymbas, near-the-hollows — the deep-cool-gray underground burial-passageways of Roman-and-early-Christian periods, particularly the San Callisto and Domitilla catacomb-systems of Via Appia. Catacomb color refers to a San-Callisto 3rd-century catacomb-passage in candlelight: a dark cool-gray with the matte finish of Roman-tufa hand-quarried Via-Appia Roman-Christian fossors tunnel-construction.

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.

#2c0020
Original
#030e21
Protanopia
#12151f
Deuteranopia
#30010e
Tritanopia
#0c0c0c
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
18.62:1
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
1.13:1

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