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Sufficiently Pitch

#180327
Notes

Sufficiently Pitch (#180327) 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 (275°, 86%, 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#180327
RGB
rgb(24, 3, 39)
HSL
hsl(275, 86%, 8%)
HWB
hwb(275 1% 85%)
OKLCH
oklch(16.9% 0.074 307.8)
HSV
hsv(275, 92%, 15%)
LAB
lab(3.67% 15.96 -18.48)
LCH
lch(3.67% 24.42 310.82)
CMYK
cmyk(38%, 92%, 0%, 85%)

Etymology

Sufficiently
adjective

Latin sufficiēns, enough — adverbial-and-adjectival suffix -ly. As a color modifier, sufficiently implies a neutral-and-enough-and-satisfactory quality where the hue carries the visual register of enough-and-satisfactory-and-fitting coordinated color-decision matched to its functional requirement. Sits at the neutral-and-traditional end of the grid, parallel to adequately and appropriately in usage.

Pitch
noun

The black residue of distilled wood tar or coal tar — used since the Bronze Age to caulk ship hulls, seal medieval European roofs, and waterproof Egyptian mummification. Pitch black refers to the surface of fresh pine tar pitch: a saturated near-black with the slightly tacky, glossy finish of a viscous semi-solid. Warmer than ink, deeper than soot, with the maritime-and-medieval weight of every wooden ship before iron.

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

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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.

#180327
Original
#000c28
Protanopia
#000d26
Deuteranopia
#160a14
Tritanopia
#0a0a0a
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
19.42:1
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
1.08:1

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