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Sonorous Sash Brick

#c6402a
Notes

Sonorous Sash Brick (#C6402A) is a true red with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (8°, 65%, 47%) 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
#c6402a
RGB
rgb(198, 64, 42)
HSL
hsl(8, 65%, 47%)
HWB
hwb(8 16% 22%)
OKLCH
oklch(56.1% 0.174 31.9)
P3
color(display-p3 0.7177 0.2898 0.2042)
HSV
hsv(8, 79%, 78%)
LAB
lab(46.77% 52.11 42.28)
LCH
lch(46.77% 67.10 39.05)
CMYK
cmyk(0%, 68%, 79%, 22%)

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.

Sash
modifier

Arabic shāsh, muslin-strip-or-turban-cloth. As a color modifier, sash implies a wound-strip-and-cummerbund-and-bandolier quality, the visual register of Mughal-cummerbund-and-Spanish-fajín-sash hand-wound-strip-and-cummerbund-and-bandolier Mughal-cummerbund-and-Spanish-fajín-sash-and-Ottoman-sash sash-and-wound-strip-and-cummerbund surfaces under Mughal-cummerbund-and-Spanish-fajín-sash-and-Ottoman-sash Mughal-Delhi-and-Iberian-and-Ottoman-Topkapi wound-cloth-light. Sits at the modifier-and-textile end of the grid, parallel to kilt and shawl in usage.

Brick
noun

Fired clay, mineral red. The color refers to common building brick — iron-rich earthenware kilned to the specific dusky red-orange of a Victorian terrace, a Roman aqueduct, an adobe wall in New Mexico. Less saturated than ruby, warmer than burgundy, with a chalky cast that reads as architectural rather than decorative.

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.

#c6402a
Original
#675c26
Protanopia
#887a24
Deuteranopia
#da143c
Tritanopia
#5b5b5b
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
5.04:1
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
4.17:1

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
##C6402A
Display P3
Display P3
color(display-p3 0.7177 0.2898 0.2042)
P3 has subtle headroomOKLCH chroma 0.174

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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