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Decisive Henna

#87181e
Notes

Decisive Henna (#87181E) is a deep red 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 (357°, 70%, 31%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#87181e
RGB
rgb(135, 24, 30)
HSL
hsl(357, 70%, 31%)
HWB
hwb(357 9% 47%)
OKLCH
oklch(40.7% 0.145 24.3)
HSV
hsv(357, 82%, 53%)
LAB
lab(29.16% 45.68 26.81)
LCH
lch(29.16% 52.96 30.41)
CMYK
cmyk(0%, 82%, 78%, 47%)

Etymology

Decisive
adjective

From the Latin decidere, to cut off — used as a modifier for colors that read as firm and final. Decisive black, decisive red: the implication is that the color has settled on its position and won't drift. Sits in the bold-bucket corner alongside resolute, with a slightly sharper edge.

Henna
noun

Lawsonia inermis, the small flowering shrub of North Africa and South Asia whose dried leaves yield a red-brown dye used since the Bronze Age for skin, hair, and textile. The color refers to fresh henna paste applied to skin, where it oxidizes to a deep brick-red over forty-eight hours. Earthier than rose, more orange than maroon, with the slow-developed quality particular to plant-based dye.

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.

#87181e
Original
#3b351d
Protanopia
#564d1a
Deuteranopia
#95001c
Tritanopia
#303030
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
9.63:1
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
2.18:1

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