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Indigenous Lampblack

#090011
Notes

Indigenous Lampblack (#090011) 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 (272°, 100%, 3%) 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
#090011
RGB
rgb(9, 0, 17)
HSL
hsl(272, 100%, 3%)
HWB
hwb(272 0% 93%)
OKLCH
oklch(10.7% 0.054 311.4)
HSV
hsv(272, 100%, 7%)
LAB
lab(0.89% 4.92 -6.16)
LCH
lch(0.89% 7.88 308.62)
CMYK
cmyk(47%, 100%, 0%, 93%)

Etymology

Indigenous
adjective

Latin indigena, native-born — adjectival suffix -ous. As a color modifier, indigenous implies a neutral-and-native-and-traditional quality, the neutral color of Indigenous-and-First-Nations hand-built-and-tradition-rooted ceremonial-craft pottery-and-textile-and-totem surface-finish. Sits at the neutral-and-traditional end of the grid, parallel to native and aboriginal in usage.

Lampblack
noun

Carbon black pigment produced by the incomplete-combustion of oils-and-resins on a cooled-glass collector — the pigment of Chinese ink, Japanese sumi ink, and India ink. Lampblack color refers to a freshly ground lampblack-and-glue ink-stick rubbed on a Japanese suzuri ink-stone: a saturated, slightly cool deep black with the matte finish of pure-carbon pigment on absorbent hand-finished Japanese washi paper.

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.

#090011
Original
#000312
Protanopia
#000311
Deuteranopia
#080206
Tritanopia
#030303
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
20.59:1
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
1.02:1

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