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Indigenous Eclipse

#180423
Notes

Indigenous Eclipse (#180423) 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 (279°, 79%, 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
#180423
RGB
rgb(24, 4, 35)
HSL
hsl(279, 79%, 8%)
HWB
hwb(279 2% 86%)
OKLCH
oklch(16.7% 0.066 311.6)
P3
color(display-p3 0.0841 0.0191 0.1311)
HSV
hsv(279, 89%, 14%)
LAB
lab(3.63% 13.97 -15.43)
LCH
lch(3.63% 20.81 312.15)
CMYK
cmyk(31%, 89%, 0%, 86%)

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.

Eclipse
noun

The total occlusion of the sun by the moon — the brief event during which the sky goes from full daylight to deep blue-black in the four to seven minutes of totality. The color refers to the sky at the centerline of total eclipse: a deep, slightly violet-shifted near-black with the optical complexity of a sky still receiving the sun's corona. Cooler than midnight, warmer than vantablack, with the celestial weight of a phenomenon visible at any single location once every few centuries.

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.

#180423
Original
#000c24
Protanopia
#020d22
Deuteranopia
#170a12
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
19.44:1
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

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
##180423
Display P3
Display P3
color(display-p3 0.0841 0.0191 0.1311)
Inside sRGBOKLCH chroma 0.066

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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