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Cultured Smoke

#270421
Notes

Cultured Smoke (#270421) 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 (310°, 81%, 8%) 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
#270421
RGB
rgb(39, 4, 33)
HSL
hsl(310, 81%, 8%)
HWB
hwb(310 2% 85%)
OKLCH
oklch(19.4% 0.073 335.6)
P3
color(display-p3 0.1377 0.0239 0.1246)
HSV
hsv(310, 90%, 15%)
LAB
lab(5.67% 21.52 -10.57)
LCH
lch(5.67% 23.97 333.85)
CMYK
cmyk(0%, 90%, 15%, 85%)

Etymology

Cultured
adjective

Latin cultūra, cultivation — past-participle of culture. As a color modifier, cultured implies a neutral-and-cultivated-and-educated quality, the neutral color of Edwardian-and-Belle-Époque cultivated-and-educated-and-refined elegant-and-cultivated interior-decoration-and-dress-attire coordinated-color tone. Sits at the neutral-and-cultivated end of the grid, parallel to refined and polished in usage.

Smoke
noun

The visible suspension of fine particles produced by combustion — wood smoke, oil smoke, the soft gray haze of distant forest fires. The color refers to mid-density wood smoke seen against a clear sky: a soft, slightly muted gray with the optical translucency of a particulate cloud. Cooler than ash, warmer than fog, with the atmospheric weight of a phenomenon that has signaled human presence for the entire history of fire.

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.

#270421
Original
#040f22
Protanopia
#101420
Deuteranopia
#2a0611
Tritanopia
#0e0e0e
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
18.66:1
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

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
##270421
Display P3
Display P3
color(display-p3 0.1377 0.0239 0.1246)
Inside sRGBOKLCH chroma 0.073

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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