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Smouldered Aubergine

#421b74
Notes

Smouldered Aubergine (#421B74) 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°, 62%, 28%) 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
#421b74
RGB
rgb(66, 27, 116)
HSL
hsl(266, 62%, 28%)
HWB
hwb(266 11% 55%)
OKLCH
oklch(33.5% 0.142 298.2)
P3
color(display-p3 0.2394 0.1144 0.4376)
HSV
hsv(266, 77%, 45%)
LAB
lab(20.84% 37.95 -43.82)
LCH
lch(20.84% 57.97 310.89)
CMYK
cmyk(43%, 77%, 0%, 55%)

Etymology

Smouldered
adjective

From Old English smolderian, to burn slowly — past-participle of smoulder. As a color modifier, smouldered implies the deep glowing-dark quality of fire-warmed embers, where the underlying hue retains warmth even at low lightness. Sits at the deep-and-warm end of the grid, somewhere between charred and burnt.

Aubergine
noun

The French and British name for the eggplant — borrowed from the Catalan albergínia and ultimately from the Sanskrit vātiṅgaṇa. Aubergine as a color name carries with it the slightly more aristocratic register of the European-language version of the word. The color refers to the same fruit as eggplant but shifted slightly redder in popular usage: a saturated, slightly red-shifted very deep purple with the polished finish of waxy fruit. Cooler than wine, warmer than indigo.

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.

#421b74
Original
#003277
Protanopia
#003172
Deuteranopia
#363246
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
12.80:1
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
1.64:1

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
##421B74
Display P3
Display P3
color(display-p3 0.2394 0.1144 0.4376)
P3 has subtle headroomOKLCH chroma 0.142

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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