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Ebon Hóngzǐ

#631450
Notes

Ebon Hóngzǐ (#631450) 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 (314°, 66%, 23%) 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#631450
RGB
rgb(99, 20, 80)
HSL
hsl(314, 66%, 23%)
HWB
hwb(314 8% 61%)
OKLCH
oklch(35.1% 0.130 339.6)
HSV
hsv(314, 80%, 39%)
LAB
lab(22.77% 40.91 -16.74)
LCH
lch(22.77% 44.21 337.74)
CMYK
cmyk(0%, 80%, 19%, 61%)

Etymology

Ebon
adjective

A poetic shortening of ebony — used principally in nineteenth-century verse and Edgar Allan Poe (The Ravenebon bird). As a color modifier, ebon is a literary register for deep black with slight warmth, distinct from the cooler inky and the harder jet. Carries the same weight as the wood it borrows from.

Hóngzǐ
noun

Chinese 红紫, red-purple — the traditional Chinese color name for the warm magenta-purple band of Tang-and-Song-dynasty imperial silks. Hóngzǐ color refers to a Tang-dynasty imperial silk court robe: a saturated, slightly cool deep magenta with the silk luster of multi-bath yān-zhi (safflower) and gromwell-root overdye on tussah silk. Warmer than (purple) and cooler than hóng (red).

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.

#631450
Original
#192e52
Protanopia
#333b4e
Deuteranopia
#691730
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
12.02:1
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
1.75:1

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