colors
Back to gallery

True Road Crimson

#ac1f1c
Notes

True Road Crimson (#AC1F1C) 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 (1°, 72%, 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
#ac1f1c
RGB
rgb(172, 31, 28)
HSL
hsl(1, 72%, 39%)
HWB
hwb(1 11% 33%)
OKLCH
oklch(48.3% 0.177 27.8)
HSV
hsv(1, 84%, 67%)
LAB
lab(37.55% 54.79 39.00)
LCH
lch(37.55% 67.25 35.44)
CMYK
cmyk(0%, 82%, 84%, 33%)

Etymology

True
adjective

Old English trēowe, faithful — used as a color modifier since the seventeenth century for hues that read as the canonical version of their family. True red, true blue: the saturation is full, the hue is neither shifted nor adulterated. Sits at the center of the bold and crisp buckets, marking the unequivocal middle of any chromatic family.

Road
modifier

Old English rād, journey / way. As a color modifier, road implies a paved-thoroughfare-and-traffic quality, the visual register of Roman-Watling-Street-and-Fosse-Way hand-laid Roman-paved straight-line agricultural-and-urban road-bed surfaces under English-Roman-road open-country sky. Sits at the modifier-and-place end of the grid, parallel to lane and path 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.

#ac1f1c
Original
#4d4519
Protanopia
#706314
Deuteranopia
#be0021
Tritanopia
#3d3d3d
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

Related Colors

Canvas