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Sinewy Persia Forest

#1f811f
Notes

Sinewy Persia Forest (#1F811F) 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 (120°, 61%, 31%) 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
#1f811f
RGB
rgb(31, 129, 31)
HSL
hsl(120, 61%, 31%)
HWB
hwb(120 12% 49%)
OKLCH
oklch(52.8% 0.160 142.9)
P3
color(display-p3 0.2484 0.4985 0.1849)
HSV
hsv(120, 76%, 51%)
LAB
lab(47.09% -46.94 42.60)
LCH
lch(47.09% 63.39 137.78)
CMYK
cmyk(76%, 0%, 76%, 49%)

Etymology

Sinewy
adjective

Old English sinu, sinew — adjectival suffix -y. As a color modifier, sinewy implies a saturated-and-muscular-and-firm quality where the hue carries the lean-and-strong visual presence of a Roman-statue athletic figure. Sits at the bold-and-firm end of the grid, parallel to stalwart and rugged in usage.

Persia
modifier

Latin Persia, Persia. As a color modifier, persia implies an Achaemenid-and-Safavid-Imperial quality, the visual register of Achaemenid-Persia-and-Safavid-Persia hand-built Persepolis-and-Isfahan-and-Persian-rug-and-tile Imperial-Persian surfaces under Persepolis-and-Isfahan Achaemenid-and-Safavid Imperial-Persian high-desert light. Sits at the modifier-and-cultural end of the grid, parallel to median and achaemenid 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.

#1f811f
Original
#84740c
Protanopia
#796d29
Deuteranopia
#007d6e
Tritanopia
#656565
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).
AAon White
4.98:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.22:1

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
##1F811F
Display P3
Display P3
color(display-p3 0.2484 0.4985 0.1849)
P3 has subtle headroomOKLCH chroma 0.160

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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