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Sonorous Blaze Crimson

#b13017
Notes

Sonorous Blaze Crimson (#B13017) 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 (10°, 77%, 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 cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#b13017
RGB
rgb(177, 48, 23)
HSL
hsl(10, 77%, 39%)
HWB
hwb(10 9% 31%)
OKLCH
oklch(50.6% 0.170 32.8)
P3
color(display-p3 0.6397 0.2298 0.1403)
HSV
hsv(10, 87%, 69%)
LAB
lab(40.45% 50.78 44.42)
LCH
lch(40.45% 67.47 41.17)
CMYK
cmyk(0%, 73%, 87%, 31%)

Etymology

Sonorous
adjective

Latin sonōrus, resounding — derived from sonus (sound). As a color modifier, sonorous implies a saturated-and-richly-vibrating quality where the hue carries the deep-resonance visual register of a cathedral-organ-pipe low-note. Sits at the bold-and-resonant end of the grid, parallel to resonant and deep in usage.

Blaze
modifier

Old English blæse, torch-or-flame. As a color modifier, blaze implies a roaring-and-bright-and-spreading-flame quality, the visual register of bonfire-and-Yule-log-blaze hand-roaring-and-bright-and-spreading-flame bonfire-and-Yule-log-and-hearth-fire blazed-and-roaring-and-bright-and-spreading surfaces under bonfire-and-Yule-log-and-hearth-fire roaring-and-bright-and-spreading midwinter-and-bonfire-night-light. Sits at the modifier-and-mood end of the grid, parallel to flare and spark 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.

#b13017
Original
#574d12
Protanopia
#776a0e
Deuteranopia
#c3002c
Tritanopia
#4a4a4a
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
6.35:1
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
3.30:1

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
##B13017
Display P3
Display P3
color(display-p3 0.6397 0.2298 0.1403)
P3 has subtle headroomOKLCH chroma 0.170

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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