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Forceful Madder

#970b41
Notes

Forceful Madder (#970B41) 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 (337°, 86%, 32%) 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
#970b41
RGB
rgb(151, 11, 65)
HSL
hsl(337, 86%, 32%)
HWB
hwb(337 4% 41%)
OKLCH
oklch(43.8% 0.169 7.4)
HSV
hsv(337, 93%, 59%)
LAB
lab(32.26% 55.00 8.56)
LCH
lch(32.26% 55.67 8.85)
CMYK
cmyk(0%, 93%, 57%, 41%)

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.

Madder
noun

Rubia tinctorum, the dyer's madder — the root pigment that fed European red textile production from antiquity until synthetic alizarin replaced it in 1869. Less brilliant than kermes, more lightfast than safflower, madder-dyed wool was the workhorse red of Persian carpets, British redcoats, and Turkish kilim. The color carries that history: a warm, slightly orange red with the matte finish of cloth rather than glaze.

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.

#970b41
Original
#383b42
Protanopia
#5b553e
Deuteranopia
#a60027
Tritanopia
#2d2d2d
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
8.61:1
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
2.44:1

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