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Authoritative Frieze Brick

#c61d14
Notes

Authoritative Frieze Brick (#C61D14) 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 (3°, 82%, 43%) 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
#c61d14
RGB
rgb(198, 29, 20)
HSL
hsl(3, 82%, 43%)
HWB
hwb(3 8% 22%)
OKLCH
oklch(53.0% 0.202 29.2)
HSV
hsv(3, 90%, 78%)
LAB
lab(42.67% 62.51 49.25)
LCH
lch(42.67% 79.58 38.24)
CMYK
cmyk(0%, 85%, 90%, 22%)

Etymology

Authoritative
adjective

Latin auctōritāt-, authority — adjectival suffix -ive. As a color modifier, authoritative implies a saturated-and-formal-imperative quality where the hue carries decisional weight and institutional credibility. Sits at the bold-and-authoritative end of the grid, parallel to commanding and magisterial in usage.

Frieze
modifier

Old French frise, band-of-decoration. As a color modifier, frieze implies a horizontal-decorative-band quality, the visual register of Greek-Parthenon-and-Roman-Imperial-frieze hand-carved Doric-and-Ionic-and-Corinthian classical-decorative-frieze architectural surfaces under classical-frieze decorative-band light. Sits at the modifier-and-architecture end of the grid, parallel to eave and plinth 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

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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.

#c61d14
Original
#584d0e
Protanopia
#807202
Deuteranopia
#db001e
Tritanopia
#404040
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
5.85:1
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
3.59:1

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Canvas