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Clear Cuoio

#644709
Notes

Clear Cuoio (#644709) is a deep amber 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 (41°, 83%, 21%) places it in the highly saturated band at a dark 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
#644709
RGB
rgb(100, 71, 9)
HSL
hsl(41, 83%, 21%)
HWB
hwb(41 4% 61%)
OKLCH
oklch(41.9% 0.082 80.2)
P3
color(display-p3 0.3750 0.2831 0.0947)
HSV
hsv(41, 91%, 39%)
LAB
lab(32.34% 6.66 38.14)
LCH
lch(32.34% 38.72 80.09)
CMYK
cmyk(0%, 29%, 91%, 61%)

Etymology

Clear
adjective

From the Latin clarus, bright, distinct — used as a color modifier since the medieval period for hues without haze or mixing. Clear blue sky, clear green water: the implication is moderate saturation combined with optical clarity. Sits at the crisp-bucket center alongside clean and true.

Cuoio
noun

The Italian word for leather — used in fashion vocabulary for the warm brown of vegetable-tanned cowhide. Cuoio-color is the standard for Italian saddle and shoe leather. The color refers to a freshly oiled vegetable-tanned cuoio: a warm, slightly muted brown with the satin finish of finished leather. The Italian cousin of tan and cognac.

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.

#644709
Original
#524800
Protanopia
#594f0c
Deuteranopia
#6e3f3c
Tritanopia
#494949
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).
AAAon White
8.58:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.45:1

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
##644709
Display P3
Display P3
color(display-p3 0.3750 0.2831 0.0947)
P3 has subtle headroomOKLCH chroma 0.082

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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