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Sonorous Carnelian

#b11717
Notes

Sonorous Carnelian (#B11717) 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 (0°, 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
#b11717
RGB
rgb(177, 23, 23)
HSL
hsl(0, 77%, 39%)
HWB
hwb(0 9% 31%)
OKLCH
oklch(48.7% 0.186 27.8)
HSV
hsv(0, 87%, 69%)
LAB
lab(37.89% 57.99 42.28)
LCH
lch(37.89% 71.77 36.10)
CMYK
cmyk(0%, 87%, 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.

Carnelian
noun

A translucent variety of chalcedony tinted by trace iron, carnelian was the seal stone of the ancient world — Roman intaglios, Indus Valley etched beads, the breastplate of the Israelite high priest. The name comes from the Latin carneolus, of flesh. The color is exactly that: a warm, low-saturation red that reads as both stone and skin, more orange than crimson, more body than blood.

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

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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.

#b11717
Original
#4d4414
Protanopia
#72650b
Deuteranopia
#c4001a
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).
AAon White
6.99:1
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

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Canvas