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Tough Chive Forest

#318f17
Notes

Tough Chive Forest (#318F17) 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 (107°, 72%, 33%) 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#318f17
RGB
rgb(49, 143, 23)
HSL
hsl(107, 72%, 33%)
HWB
hwb(107 9% 44%)
OKLCH
oklch(57.2% 0.174 140.2)
P3
color(display-p3 0.3016 0.5532 0.1836)
HSV
hsv(107, 84%, 56%)
LAB
lab(52.24% -48.69 50.36)
LCH
lch(52.24% 70.05 134.04)
CMYK
cmyk(66%, 0%, 84%, 44%)

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.

Chive
modifier

Latin cepa, small-onion-grass-herb. As a color modifier, chive implies a slim-grass-onion-and-spring-fresh quality, the visual register of English-cottage-garden-and-French-bistro-chive hand-slim-grass-onion-and-spring-fresh English-cottage-garden-and-French-bistro-chive-and-fines-herbes chive-and-slim-grass-onion surfaces under English-cottage-garden-and-French-bistro-chive-and-fines-herbes Sussex-cottage-and-Lyon-bouchon spring-onion-light. Sits at the modifier-and-flavor end of the grid, parallel to dill and chervil 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.

#318f17
Original
#938100
Protanopia
#887a26
Deuteranopia
#228a79
Tritanopia
#727272
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).
AA Largeon White
4.14:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.07:1

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
##318F17
Display P3
Display P3
color(display-p3 0.3016 0.5532 0.1836)
P3 has subtle headroomOKLCH chroma 0.174

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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