colors
Back to gallery
Warmorangedeep

Dusky Rust Cloud

#66391a
Notes

Dusky Rust Cloud (#66391A) is a deep orange 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 (24°, 59%, 25%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#66391a
RGB
rgb(102, 57, 26)
HSL
hsl(24, 59%, 25%)
HWB
hwb(24 10% 60%)
OKLCH
oklch(39.4% 0.078 52.9)
HSV
hsv(24, 75%, 40%)
LAB
lab(28.97% 17.03 27.29)
LCH
lch(28.97% 32.17 58.03)
CMYK
cmyk(0%, 44%, 75%, 60%)

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.

#66391a
Original
#463e17
Protanopia
#51481a
Deuteranopia
#703032
Tritanopia
#404040
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
9.70:1
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
2.17:1

Related Colors

Canvas