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Indigenous Schorl

#0a0421
Notes

Indigenous Schorl (#0A0421) 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 (252°, 78%, 7%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#0a0421
RGB
rgb(10, 4, 33)
HSL
hsl(252, 78%, 7%)
HWB
hwb(252 2% 87%)
OKLCH
oklch(14.4% 0.060 287.7)
P3
color(display-p3 0.0350 0.0165 0.1231)
HSV
hsv(252, 88%, 13%)
LAB
lab(2.36% 7.98 -15.92)
LCH
lch(2.36% 17.81 296.62)
CMYK
cmyk(70%, 88%, 0%, 87%)

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.

Schorl
noun

NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄ black tourmaline — the iron-rich endmember of the tourmaline group, mined principally at Erongo in Namibia and Pala in California. Schorl color refers to a freshly cleaved Erongo schorl prismatic crystal face: a saturated, slightly cool deep black with the glassy finish of trigonal-system iron-aluminum-borosilicate. The German name Schörl dates to 16th-century Saxon-Erzgebirge mining.

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.

#0a0421
Original
#000922
Protanopia
#000820
Deuteranopia
#030a11
Tritanopia
#070707
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
19.96:1
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
1.05:1

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
##0A0421
Display P3
Display P3
color(display-p3 0.0350 0.0165 0.1231)
Inside sRGBOKLCH chroma 0.060

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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