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Properly Licorice

#180330
Notes

Properly Licorice (#180330) 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 (268°, 88%, 10%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#180330
RGB
rgb(24, 3, 48)
HSL
hsl(268, 88%, 10%)
HWB
hwb(268 1% 81%)
OKLCH
oklch(17.9% 0.085 299.7)
P3
color(display-p3 0.0837 0.0153 0.1797)
HSV
hsv(268, 94%, 19%)
LAB
lab(4.27% 20.05 -24.35)
LCH
lch(4.27% 31.54 309.48)
CMYK
cmyk(50%, 94%, 0%, 81%)

Etymology

Properly
adjective

Latin proprius, one's own — adverbial-and-adjectival suffix -ly. As a color modifier, properly implies a neutral-and-appropriate-and-correct quality where the hue carries the visual register of conventionally-fitting-and-correct color-decision matched to its functional context. Sits at the neutral-and-traditional end of the grid, parallel to appropriately and suitably in usage.

Licorice
noun

Glycyrrhiza glabra, the Mediterranean legume whose root yields glycyrrhizin — fifty times sweeter than sugar and the basis of European black licorice candy. The color refers to a fresh stick of black licorice candy: a deep, slightly muted near-black with the slight shine of a starch-bound confection. Warmer than ink, glossier than soot, with the candy-jar weight of a flavor and color identified almost entirely with one root extract.

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.

#180330
Original
#000f31
Protanopia
#000e2f
Deuteranopia
#120e19
Tritanopia
#0b0b0b
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
19.19:1
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
1.09:1

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
##180330
Display P3
Display P3
color(display-p3 0.0837 0.0153 0.1797)
P3 has subtle headroomOKLCH chroma 0.085

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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