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Clean Yew

#0a631f
Notes

Clean Yew (#0A631F) is a deep green 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 (134°, 82%, 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#0a631f
RGB
rgb(10, 99, 31)
HSL
hsl(134, 82%, 21%)
HWB
hwb(134 4% 61%)
OKLCH
oklch(43.7% 0.128 145.9)
P3
color(display-p3 0.1705 0.3822 0.1583)
HSV
hsv(134, 90%, 39%)
LAB
lab(36.15% -39.54 30.92)
LCH
lch(36.15% 50.19 141.98)
CMYK
cmyk(90%, 0%, 69%, 61%)

Etymology

Clean
adjective

Old English clǣne, pure, free of dirt — used as a color modifier since the medieval period for hues that read as crisp and uncontaminated by other pigments. Clean white, clean blue: moderate saturation combined with optical clarity. Sits at the crisp-bucket center alongside clear and true.

Yew
noun

Taxus baccata, the European yew — a long-lived conifer (some specimens over 2,000 years old) traditionally planted in English churchyards. The color refers to mature yew foliage: a deep, slightly muted very dark green with the matte finish of resin-coated needle foliage. Darker than juniper.

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.

#0a631f
Original
#655917
Protanopia
#5b5225
Deuteranopia
#006055
Tritanopia
#4b4b4b
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
7.45:1
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
2.82:1

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
##0A631F
Display P3
Display P3
color(display-p3 0.1705 0.3822 0.1583)
P3 has subtle headroomOKLCH chroma 0.128

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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