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Indomitable Hollyhock

#b21840
Notes

Indomitable Hollyhock (#B21840) is a true red with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (344°, 76%, 40%) places it in the highly saturated band at a mid 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
#b21840
RGB
rgb(178, 24, 64)
HSL
hsl(344, 76%, 40%)
HWB
hwb(344 9% 30%)
OKLCH
oklch(49.5% 0.185 14.3)
HSV
hsv(344, 87%, 70%)
LAB
lab(38.71% 59.65 18.90)
LCH
lch(38.71% 62.57 17.58)
CMYK
cmyk(0%, 87%, 64%, 30%)

Etymology

Indomitable
adjective

Latin indomitābilis, unconquerable — derived from domāre (to tame). As a color modifier, indomitable implies a saturated-and-unconquerable-and-fierce quality where the hue resists any attempt to subdue or modulate its presence. Sits at the bold-and-resilient end of the grid, parallel to unyielding and adamant.

Hollyhock
noun

Alcea rosea, the tall biennial of European cottage gardens whose red, pink, and white flowers spire above the garden in late summer. The color refers to the deep red variety of hollyhock at full bloom: a saturated, slightly cool deep red with the matte finish of large mallow-family flowers. Deeper than rose, 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.

#b21840
Original
#494740
Protanopia
#6f663c
Deuteranopia
#c4002b
Tritanopia
#3c3c3c
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
6.78:1
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
3.10:1

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