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Handmade Hornblende

#150531
Notes

Handmade Hornblende (#150531) 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 (262°, 81%, 11%) 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
#150531
RGB
rgb(21, 5, 49)
HSL
hsl(262, 81%, 11%)
HWB
hwb(262 2% 81%)
OKLCH
oklch(18.0% 0.082 293.6)
P3
color(display-p3 0.0739 0.0222 0.1835)
HSV
hsv(262, 90%, 19%)
LAB
lab(4.42% 18.44 -24.87)
LCH
lch(4.42% 30.96 306.56)
CMYK
cmyk(57%, 90%, 0%, 81%)

Etymology

Handmade
adjective

English compound hand + past-participle made — sharing root with make. As a color modifier, handmade implies a neutral-and-hand-built-and-craft quality, the neutral color of Mingei-Japanese-and-Shaker-and-Wedgwood hand-built-and-craft-tradition pottery-and-textile-and-furniture surface-finish. Sits at the neutral-and-traditional end of the grid, parallel to handcrafted and artisanal in usage.

Hornblende
noun

(Ca,Na)₂(Mg,Fe,Al)₅(Si,Al)₈O₂₂(OH)₂ amphibole-group mineral — the principal mafic mineral of granite-and-gneiss, particularly the hornblende-biotite gneisses of the Adirondacks and the Scottish Highlands. Hornblende color refers to a freshly cleaved Adirondack hornblende prismatic-cluster face: a saturated, slightly cool deep black with the glassy finish of monoclinic-system iron-magnesium-aluminum-amphibole. The German name Hornblende is 16th-century Saxon mining vocabulary.

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.

#150531
Original
#001032
Protanopia
#000e30
Deuteranopia
#0c101a
Tritanopia
#0c0c0c
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
19.13:1
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
1.10:1

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
##150531
Display P3
Display P3
color(display-p3 0.0739 0.0222 0.1835)
P3 has subtle headroomOKLCH chroma 0.082

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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