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Peaceful Cuoio

#efbf64
Notes

Peaceful Cuoio (#EFBF64) is a true amber with a warm character. It leans warm, pulling light toward red, orange, and yellow. Naturally inviting, it suits editorial and hospitality contexts. Its HSL profile (39°, 81%, 66%) 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
#efbf64
RGB
rgb(239, 191, 100)
HSL
hsl(39, 81%, 66%)
HWB
hwb(39 39% 6%)
OKLCH
oklch(83.0% 0.122 81.7)
HSV
hsv(39, 58%, 94%)
LAB
lab(79.92% 7.05 51.71)
LCH
lch(79.92% 52.18 82.24)
CMYK
cmyk(0%, 20%, 58%, 6%)

Etymology

Peaceful
adjective

Latin pāx, peace — adjectival suffix -ful. As a color modifier, peaceful implies a clear-and-restful-and-calm quality where the hue carries the visual register of Quaker-meeting-house still-and-meditative interior atmosphere. Sits at the crisp-and-calm end of the grid, parallel to serene and placid in usage.

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

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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.

#efbf64
Original
#d3bf5b
Protanopia
#dfcb67
Deuteranopia
#ffb0aa
Tritanopia
#c3c3c3
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
1.71:1
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
12.31:1

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