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Forceful Shade Mulberry

#900f55
Notes

Forceful Shade Mulberry (#900F55) is a deep 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 (327°, 81%, 31%) 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 teal. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#900f55
RGB
rgb(144, 15, 85)
HSL
hsl(327, 81%, 31%)
HWB
hwb(327 6% 44%)
OKLCH
oklch(43.3% 0.168 355.1)
HSV
hsv(327, 90%, 56%)
LAB
lab(31.64% 54.31 -5.71)
LCH
lch(31.64% 54.61 354.00)
CMYK
cmyk(0%, 90%, 41%, 44%)

Etymology

Forceful
adjective

Old French force, strength — adjectival suffix -ful. As a color modifier, forceful implies a saturated-and-vigorous quality where the hue exerts visual force on its substrate. Sits at the bold-and-saturated end of the grid, parallel to mighty and commanding in tone.

Shade
modifier

Old English sceadu, shadow-or-shelter. As a color modifier, shade implies a sheltered-and-cool-and-shadowed quality, the visual register of Tuscan-cypress-and-Provençal-plane-tree-shade hand-sheltered-and-cool-and-shadowed Tuscan-cypress-and-Provençal-plane-tree-and-English-yew shaded-and-sheltered-and-cool surfaces under Tuscan-cypress-and-Provençal-plane-tree-and-English-yew dappled-and-cool-and-filtered afternoon-light. Sits at the modifier-and-mood end of the grid, parallel to shadow and gloam in usage.

Mulberry
noun

The genus Morus — the white mulberry (M. alba) feeds silkworms; the black mulberry (M. nigra) bears the deep purple fruit that stains everything it touches. The color refers to a ripe black mulberry: a saturated, slightly red-shifted very deep purple with the slight juiciness of a compound fruit. Cooler than wine, warmer than indigo, with the agricultural weight of a tree that supported the entire Chinese silk industry for two thousand years.

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.

#900f55
Original
#2f3c57
Protanopia
#535352
Deuteranopia
#9c0032
Tritanopia
#2f2f2f
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
8.80:1
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
2.39:1

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