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Certain Marrakech

#c7510a
Notes

Certain Marrakech (#C7510A) is a true orange with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (23°, 90%, 41%) 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 azure. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#c7510a
RGB
rgb(199, 81, 10)
HSL
hsl(23, 90%, 41%)
HWB
hwb(23 4% 22%)
OKLCH
oklch(58.2% 0.166 43.9)
HSV
hsv(23, 95%, 78%)
LAB
lab(49.56% 44.28 57.17)
LCH
lch(49.56% 72.31 52.24)
CMYK
cmyk(0%, 59%, 95%, 22%)

Etymology

Certain
adjective

Latin certus, fixed / sure — sharing root with English concern and certify. As a color modifier, certain implies a saturated-and-unambiguous quality where the hue declares its character without hesitation. Sits at the bold-and-confident end of the grid, parallel to assured and decisive in usage.

Marrakech
noun

The Moroccan city — its medieval walls limewashed in ocre rouge, the iron-rich earth that gives the city its nickname the Red City. Marrakech refers to the south-facing facade of the Koutoubia Mosque at sunset: a saturated, slightly muted deep orange-pink with the matte finish of clay-and-lime wall paint. Cooler than terracotta, warmer than copper.

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.

#c7510a
Original
#736500
Protanopia
#908000
Deuteranopia
#db3246
Tritanopia
#656565
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
4.56:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
4.61:1

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