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Deathly Glicine

#431b79
Notes

Deathly Glicine (#431B79) 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 (266°, 64%, 29%) 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
#431b79
RGB
rgb(67, 27, 121)
HSL
hsl(266, 64%, 29%)
HWB
hwb(266 11% 53%)
OKLCH
oklch(34.0% 0.148 297.1)
P3
color(display-p3 0.2430 0.1147 0.4564)
HSV
hsv(266, 78%, 47%)
LAB
lab(21.42% 39.50 -46.07)
LCH
lch(21.42% 60.69 310.61)
CMYK
cmyk(45%, 78%, 0%, 53%)

Etymology

Deathly
adjective

Old English dēath, death — adjectival suffix -ly. As a color modifier, deathly implies a deep-cool-and-pallid quality, the cold-shifted darkness associated with mortality and absence of vital warmth. Sits at the deep-and-cool end of the grid, parallel to funereal but with pallor undertone.

Glicine
noun

Italian for Wisteria sinensis, the cascading purple-violet flowering vine introduced from China to European gardens in 1816. Glicine color refers to a fully bloomed Glicine raceme on a Tuscan pergola: a saturated, slightly cool deep blue-violet with the velvet finish of dense pendulous wisteria racemes. Stocks as a fashion-color name in early-20th-century Italian millinery and Liberty-style enamels.

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.

#431b79
Original
#00347c
Protanopia
#003277
Deuteranopia
#353449
Tritanopia
#2a2a2a
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
12.56:1
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
1.67:1

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
##431B79
Display P3
Display P3
color(display-p3 0.2430 0.1147 0.4564)
P3 has subtle headroomOKLCH chroma 0.148

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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