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Sturdy Wend Crimson

#ad201d
Notes

Sturdy Wend Crimson (#AD201D) 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 (1°, 71%, 40%) 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#ad201d
RGB
rgb(173, 32, 29)
HSL
hsl(1, 71%, 40%)
HWB
hwb(1 11% 32%)
OKLCH
oklch(48.5% 0.177 27.7)
P3
color(display-p3 0.6232 0.1822 0.1490)
HSV
hsv(1, 83%, 68%)
LAB
lab(37.86% 54.85 38.82)
LCH
lch(37.86% 67.19 35.29)
CMYK
cmyk(0%, 82%, 83%, 32%)

Etymology

Sturdy
adjective

Old French estourdi, stunned, reckless — drifted in English to mean robust, well-built. Used as a color modifier since the seventeenth century for hues that read as durable and unfussy — the working browns of saddle leather, the working greens of pasture wool. Sits in the bold-and-warm corner alongside robust and solid.

Wend
modifier

Old English wendan, to-turn-or-go. As a color modifier, wend implies a winding-and-turning-and-meandered quality, the visual register of pilgrim-path-and-river-wend hand-winding-and-turning-and-meandered pilgrim-path-and-river-and-Roman-road wended-and-winding-and-turning-and-meandered surfaces under pilgrim-path-and-river-and-Roman-road Camino-and-Pennine-Way-and-Kumano hilltop-pilgrim-light. Sits at the modifier-and-mood end of the grid, parallel to drift and roam in usage.

Crimson
noun

From the Old Spanish cremesin, itself from the Arabic qirmiz — the kermes scale insect, dried and ground into a brilliant carmine dye prized in the medieval Mediterranean. For centuries the most expensive red on a draper's shelf, reserved for cardinals, kings, and the cloth that gave English the word crimson. Cooler than scarlet, deeper than rose; the color of pomegranate seeds and a serious occasion.

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.

#ad201d
Original
#4e461a
Protanopia
#706415
Deuteranopia
#bf0022
Tritanopia
#3e3e3e
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
7.00:1
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
3.00:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##AD201D
Display P3
Display P3
color(display-p3 0.6232 0.1822 0.1490)
P3 has subtle headroomOKLCH chroma 0.177

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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