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Firm Sufi Crimson

#af1626
Notes

Firm Sufi Crimson (#AF1626) 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 (354°, 78%, 39%) 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
#af1626
RGB
rgb(175, 22, 38)
HSL
hsl(354, 78%, 39%)
HWB
hwb(354 9% 31%)
OKLCH
oklch(48.4% 0.184 23.6)
P3
color(display-p3 0.6294 0.1600 0.1739)
HSV
hsv(354, 87%, 69%)
LAB
lab(37.54% 58.05 33.51)
LCH
lch(37.54% 67.03 30.00)
CMYK
cmyk(0%, 87%, 78%, 31%)

Etymology

Firm
adjective

Latin firmus, strong / stable — sharing root with English farm (originally a fixed-yearly-rental). As a color modifier, firm implies a saturated-and-resolute quality where the hue holds its visual position without wavering. Sits at the bold-and-firm end of the grid, parallel to steadfast and unwavering in usage.

Sufi
modifier

Arabic صوفي, Sufi. As a color modifier, sufi implies a Whirling-Dervish-and-mystical-Islamic quality, the visual register of Persian-and-Anatolian-Sufi Sufi hand-woven robe-and-felt-cap-and-whirling-dance Sufi-mystical-Islamic surfaces under Konya-and-Persian Sufi-Whirling-Dervish ceremonial-robe candlelight. Sits at the modifier-and-cultural end of the grid, parallel to zen and tao 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.

#af1626
Original
#4b4425
Protanopia
#6f641f
Deuteranopia
#c1001f
Tritanopia
#383838
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
7.08:1
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
2.97:1

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
##AF1626
Display P3
Display P3
color(display-p3 0.6294 0.1600 0.1739)
P3 has visible headroomOKLCH chroma 0.184

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

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