colors
Back to gallery

Rich Term Bougainvillea

#a31e81
Notes

Rich Term Bougainvillea (#A31E81) is a true magenta 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 (315°, 69%, 38%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#a31e81
RGB
rgb(163, 30, 129)
HSL
hsl(315, 69%, 38%)
HWB
hwb(315 12% 36%)
OKLCH
oklch(49.4% 0.192 341.1)
HSV
hsv(315, 82%, 64%)
LAB
lab(38.38% 60.66 -23.11)
LCH
lch(38.38% 64.91 339.14)
CMYK
cmyk(0%, 82%, 21%, 36%)

Etymology

Rich
adjective

Old French riche, wealthy, abundant — applied to color since the medieval period for hues that read as plentiful in pigment. Rich red, rich brown: the implication is depth combined with saturation, a color that gives the eye more to absorb. Sits at the saturated mid-light corner of the engine's grid, slightly warmer than bold and deeper than vivid.

Term
modifier

Latin terminus, boundary / period. As a color modifier, term implies a defined-period-and-boundary quality, the visual register of academic-and-court-term defined-and-bounded school-and-court-term scholarly-and-judicial period-marked surfaces under term-period bounded scholarly-and-judicial light. Sits at the modifier-and-time end of the grid, parallel to span and phase in usage.

Bougainvillea
noun

The genus Bougainvillea — South American vines named for the French explorer Louis Antoine de Bougainville, whose 1768 voyage encountered the plant in Rio de Janeiro. The color refers to the bracts (modified leaves) of a vivid magenta Bougainvillea spectabilis: a saturated, slightly cool deep pink-magenta with the matte papery finish of bracts that surround the plant's tiny actual flowers. Brighter than fuchsia, cooler than coral.

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.

#a31e81
Original
#2b4d84
Protanopia
#57627e
Deuteranopia
#ad224f
Tritanopia
#414141
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).
AAon White
6.86:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.06:1

Related Colors

Canvas