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Tough Wink Forest

#0d5a09
Notes

Tough Wink Forest (#0D5A09) 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 (117°, 82%, 19%) 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#0d5a09
RGB
rgb(13, 90, 9)
HSL
hsl(117, 82%, 19%)
HWB
hwb(117 4% 65%)
OKLCH
oklch(40.8% 0.131 142.3)
P3
color(display-p3 0.1579 0.3475 0.0996)
HSV
hsv(117, 90%, 35%)
LAB
lab(32.74% -38.05 36.24)
LCH
lch(32.74% 52.54 136.40)
CMYK
cmyk(86%, 0%, 90%, 65%)

Etymology

Tough
adjective

Old English tōh, firm / tenacious — sharing root with German zäh. As a color modifier, tough implies a saturated-and-resilient quality where the hue resists fading-and-modulation through its strong pigmentation. Sits at the bold-and-resilient end of the grid, parallel to rugged and hardy in usage.

Wink
modifier

Old English wincian, to-close-eye-briefly. As a color modifier, wink implies a brief-and-coy-and-twinkling quality, the visual register of star-and-candle-flame-wink hand-brief-and-coy-and-twinkling star-and-candle-flame-and-distant-window winked-and-brief-and-coy-and-twinkling surfaces under star-and-candle-flame-and-distant-window twinkling-and-coy-and-brief night-window-light. Sits at the modifier-and-mood end of the grid, parallel to blink and glint in usage.

Forest
noun

The dense canopy of a temperate or tropical woodland — oak, beech, pine, eucalyptus, mahogany — wherever leaves close above to filter the light below. Forest green refers to the average reflectance of a healthy mid-summer canopy seen from below: a saturated, slightly muted green with the matte finish of layered chlorophyll. Deeper than fern, cooler than olive, with the ecological weight of a word that has named every wooded biome on Earth.

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.

#0d5a09
Original
#5c5000
Protanopia
#544b14
Deuteranopia
#00574c
Tritanopia
#444444
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
8.46:1
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
2.48:1

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
##0D5A09
Display P3
Display P3
color(display-p3 0.1579 0.3475 0.0996)
P3 has subtle headroomOKLCH chroma 0.131

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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