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Certain Squash

#bb4c04
Notes

Certain Squash (#BB4C04) is a true orange with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (24°, 96%, 37%) 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
#bb4c04
RGB
rgb(187, 76, 4)
HSL
hsl(24, 96%, 37%)
HWB
hwb(24 2% 27%)
OKLCH
oklch(55.6% 0.159 44.5)
HSV
hsv(24, 98%, 73%)
LAB
lab(46.64% 42.04 55.78)
LCH
lch(46.64% 69.85 52.99)
CMYK
cmyk(0%, 59%, 98%, 27%)

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.

Squash
noun

The English name for Cucurbita, from the Algonquian askutasquasheaten raw. The color refers to the orange flesh of a butternut, kabocha, or honeynut: a warm, slightly muted orange with the matte surface of cooked vegetable. Earthier than pumpkin, less saturated than tangerine, with the autumn weight of a root cellar in October.

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.

#bb4c04
Original
#6d5f00
Protanopia
#887800
Deuteranopia
#ce2f41
Tritanopia
#5e5e5e
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
5.06:1
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
4.15:1

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