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Clear Bistre

#c09c57
Notes

Clear Bistre (#C09C57) 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°, 45%, 55%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#c09c57
RGB
rgb(192, 156, 87)
HSL
hsl(39, 45%, 55%)
HWB
hwb(39 34% 25%)
OKLCH
oklch(71.1% 0.098 82.3)
P3
color(display-p3 0.7304 0.6171 0.3809)
HSV
hsv(39, 55%, 75%)
LAB
lab(66.27% 4.96 40.81)
LCH
lch(66.27% 41.11 83.07)
CMYK
cmyk(0%, 19%, 55%, 25%)

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.

Bistre
noun

A traditional French painter's pigment made from soot suspended in gum arabic — used for sepia-style washes in Old Master drawings. The color refers to a bistre wash on Rembrandt-period drawing paper: a soft, slightly muted warm brown with the translucent finish of soot-and-binder. Cooler than walnut, drier than caramel.

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.

#c09c57
Original
#ac9c51
Protanopia
#b4a559
Deuteranopia
#ce918c
Tritanopia
#9f9f9f
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
2.58:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
8.13:1

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
##C09C57
Display P3
Display P3
color(display-p3 0.7304 0.6171 0.3809)
P3 has subtle headroomOKLCH chroma 0.098

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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