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Hot Giallo

#bab30a
Notes

Hot Giallo (#BAB30A) is a true yellow 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 (58°, 90%, 38%) 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 blue. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#bab30a
RGB
rgb(186, 179, 10)
HSL
hsl(58, 90%, 38%)
HWB
hwb(58 4% 27%)
OKLCH
oklch(74.8% 0.159 106.8)
HSV
hsv(58, 95%, 73%)
LAB
lab(71.35% -13.33 72.00)
LCH
lch(71.35% 73.23 100.49)
CMYK
cmyk(0%, 4%, 95%, 27%)

Etymology

Hot
adjective

Old English hāt, of high temperature — applied metaphorically to color since the eighteenth century for warm hues at high saturation. Hot pink, hot red: the implication is luminous intensity combined with thermal warmth. Sits in the bright-and-warm corner of the grid, alongside burning and vivid.

Giallo
noun

The Italian word for yellow — used in the genre name giallo (Italian crime fiction, named for the yellow-jacketed paperbacks of mid-century Italian publishers). The color refers to a giallo paperback cover: a saturated, slightly cool yellow with the matte finish of dyed paper. The Italian cousin of yellow.

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.

#bab30a
Original
#c3ac00
Protanopia
#c6b123
Deuteranopia
#c9a698
Tritanopia
#a8a8a8
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).
Failon White
2.20:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
9.54:1

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