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Robust Twined Forest

#3c8e1f
Notes

Robust Twined Forest (#3C8E1F) 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 (104°, 64%, 34%) 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
#3c8e1f
RGB
rgb(60, 142, 31)
HSL
hsl(104, 64%, 34%)
HWB
hwb(104 12% 44%)
OKLCH
oklch(57.4% 0.164 139.1)
P3
color(display-p3 0.3231 0.5498 0.1991)
HSV
hsv(104, 78%, 56%)
LAB
lab(52.29% -45.05 48.02)
LCH
lch(52.29% 65.84 133.17)
CMYK
cmyk(58%, 0%, 78%, 44%)

Etymology

Robust
adjective

From the Latin robustus, of oak — implying strength combined with substance. As a color modifier, robust describes saturation combined with body: a robust burgundy, a robust olive. Sits in the bold-and-warm corner alongside strong and solid, with the slightly textural implication of a color that has substance behind the pigment.

Twined
modifier

Old English twīn, double-thread. As a color modifier, twined implies a hand-twisted-and-paired-thread quality, the visual register of hand-twined-rope-and-twine hand-twisted-and-paired-thread rope-and-twine-and-cord hand-twined-and-paired-thread surfaces under hand-twined-and-paired-thread rope-and-twine working light. Sits at the modifier-and-texture end of the grid, parallel to twine and coiled 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.

#3c8e1f
Original
#928104
Protanopia
#887a2b
Deuteranopia
#338979
Tritanopia
#757575
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
4.13:1
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
5.08:1

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
##3C8E1F
Display P3
Display P3
color(display-p3 0.3231 0.5498 0.1991)
P3 has subtle headroomOKLCH chroma 0.164

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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