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Steadfast Murk Crimson

#ab1a1b
Notes

Steadfast Murk Crimson (#AB1A1B) is a true red with a warm character. It leans warm, pulling light toward red, orange, and yellow. Naturally inviting, it suits editorial and hospitality contexts. Its HSL profile (360°, 74%, 39%) 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
#ab1a1b
RGB
rgb(171, 26, 27)
HSL
hsl(360, 74%, 39%)
HWB
hwb(360 10% 33%)
OKLCH
oklch(47.8% 0.179 27.2)
P3
color(display-p3 0.6154 0.1661 0.1414)
HSV
hsv(360, 85%, 67%)
LAB
lab(36.89% 55.73 38.85)
LCH
lch(36.89% 67.94 34.88)
CMYK
cmyk(0%, 85%, 84%, 33%)

Etymology

Steadfast
adjective

Old English stede-fæst, fixed in place — sharing root with German stetig. As a color modifier, steadfast implies a saturated-and-unwavering quality where the hue maintains its visual character without modulation. Sits at the bold-and-firm end of the grid, parallel to unwavering and firm in usage.

Murk
modifier

Old Norse myrkr, darkness-or-obscurity. As a color modifier, murk implies a clouded-and-dim-and-obscured quality, the visual register of fen-and-bog-and-tarn-murk hand-clouded-and-dim-and-obscured fen-and-bog-and-tarn-and-marsh murky-and-clouded-and-dim-and-obscured surfaces under fen-and-bog-and-tarn-and-marsh peat-stained-and-clouded-and-dim swamp-and-fen-light. Sits at the modifier-and-mood end of the grid, parallel to gloom and pall 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.

#ab1a1b
Original
#4b4319
Protanopia
#6e6212
Deuteranopia
#bd001d
Tritanopia
#393939
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
7.25:1
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
2.90:1

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
##AB1A1B
Display P3
Display P3
color(display-p3 0.6154 0.1661 0.1414)
P3 has subtle headroomOKLCH chroma 0.179

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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