colors
Back to gallery

Mournful Amber

#664f39
Notes

Mournful Amber (#664F39) is a deep orange with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (29°, 28%, 31%) places it in the muted 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
#664f39
RGB
rgb(102, 79, 57)
HSL
hsl(29, 28%, 31%)
HWB
hwb(29 22% 60%)
OKLCH
oklch(44.6% 0.046 64.9)
P3
color(display-p3 0.3858 0.3133 0.2353)
HSV
hsv(29, 44%, 40%)
LAB
lab(35.43% 6.36 16.68)
LCH
lch(35.43% 17.85 69.13)
CMYK
cmyk(0%, 23%, 44%, 60%)

Etymology

Mournful
adjective

Old English murnan, to grieve — adjectival suffix -ful. As a color modifier, mournful implies a hushed-and-grieving-and-sad quality where the hue carries the visual register of Victorian-mourning widow's-weeds-and-funeral-procession mourning-and-grieving textile-finish. Sits at the hushed-and-melancholy end of the grid, parallel to plaintive and doleful in usage.

Amber
noun

Fossilized tree resin — pine and conifer sap that flowed sixty million years ago and slowly polymerized in Baltic and Dominican forests. The color refers to a polished cabochon of true Baltic amber: a warm, slightly translucent gold-orange with the depth of resin and the occasional inclusion of trapped insects. Softer than honey, deeper than topaz, with the mineral light of a fossil that still feels organic.

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.

#664f39
Original
#565037
Protanopia
#5c5539
Deuteranopia
#6d4a49
Tritanopia
#525252
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
7.66:1
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
2.74:1

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
##664F39
Display P3
Display P3
color(display-p3 0.3858 0.3133 0.2353)
Inside sRGBOKLCH chroma 0.046

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

Related Colors

Canvas