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Cultured Squid

#150016
Notes

Cultured Squid (#150016) is a deep violet 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 (297°, 100%, 4%) 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
#150016
RGB
rgb(21, 0, 22)
HSL
hsl(297, 100%, 4%)
HWB
hwb(297 0% 91%)
OKLCH
oklch(13.8% 0.064 326.7)
P3
color(display-p3 0.0716 0.0032 0.0819)
HSV
hsv(297, 100%, 9%)
LAB
lab(1.96% 10.14 -7.73)
LCH
lch(1.96% 12.75 322.68)
CMYK
cmyk(5%, 100%, 0%, 91%)

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.

Squid
noun

The ink ejected by squid (and cuttlefish, octopus) as a defensive cloud — melanin in a polysaccharide carrier. Used in Mediterranean cooking as nero di seppia for black pasta and risotto. The color refers to fresh squid ink in pasta water: a deep, slightly cool near-black with the optical density of melanin in suspension. Cooler than ink, warmer than vantablack, with the kitchen specificity of a black that flavors as well as colors.

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.

#150016
Original
#000517
Protanopia
#030815
Deuteranopia
#160208
Tritanopia
#060606
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
20.13:1
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
1.04:1

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
##150016
Display P3
Display P3
color(display-p3 0.0716 0.0032 0.0819)
Inside sRGBOKLCH chroma 0.064

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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