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Useful Mango

#8a310b
Notes

Useful Mango (#8A310B) is a deep orange 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 (18°, 85%, 29%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#8a310b
RGB
rgb(138, 49, 11)
HSL
hsl(18, 85%, 29%)
HWB
hwb(18 4% 46%)
OKLCH
oklch(43.8% 0.130 39.9)
HSV
hsv(18, 92%, 54%)
LAB
lab(33.19% 36.28 40.61)
LCH
lch(33.19% 54.45 48.22)
CMYK
cmyk(0%, 64%, 92%, 46%)

Etymology

Useful
adjective

Latin ūsus, use — adjectival suffix -ful. As a color modifier, useful implies a clear-and-purpose-serving quality where the hue carries the visual register of helpful-and-supporting design-element. Sits at the crisp-and-functional end of the grid, parallel to practical and serviceable in usage.

Mango
noun

Mangifera indica, the tropical drupe domesticated in the Indian subcontinent four thousand years ago and now the most-consumed fruit in the world by tonnage. The color is the inside of a ripe Alphonso or Ataulfo mango: a saturated, golden orange that's deeper than apricot and warmer than yolk. Carotenoids again — the unifying pigment of the warm orange family across plants and animals.

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.

#8a310b
Original
#4b4103
Protanopia
#615605
Deuteranopia
#98182a
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).
AAAon White
8.32:1
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
2.52:1

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