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Hadean Murasaki

#421b6e
Notes

Hadean Murasaki (#421B6E) is a deep indigo 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 (268°, 61%, 27%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#421b6e
RGB
rgb(66, 27, 110)
HSL
hsl(268, 61%, 27%)
HWB
hwb(268 11% 57%)
OKLCH
oklch(32.9% 0.135 300.5)
HSV
hsv(268, 75%, 43%)
LAB
lab(20.31% 36.31 -40.81)
LCH
lch(20.31% 54.62 311.66)
CMYK
cmyk(40%, 75%, 0%, 57%)

Etymology

Hadean
adjective

Greek Hadean, of Hades — adjectival form of Hades. As a color modifier, hadean implies the deep cool-darkness of the classical-Greek underworld realms, with literary-poetic register. Sits at the deep-and-cool end of the grid, parallel to plutonian and Stygian in classical-mythological register.

Murasaki
noun

Japanese 紫, purple — historically the noble color of the Heian-period imperial court, derived from Lithospermum erythrorhizon (gromwell) root dye. Murasaki color refers to a Heian-period court silk kinu robe: a saturated, slightly cool deep violet with the silk luster of multi-bath gromwell-root dye. The word also names Murasaki Shikibu, author of The Tale of Genji (1010 CE).

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.

#421b6e
Original
#003170
Protanopia
#00306c
Deuteranopia
#382f42
Tritanopia
#292929
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
13.01:1
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
1.61:1

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