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Steadfast Shawl Forest

#218d1d
Notes

Steadfast Shawl Forest (#218D1D) 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 (118°, 66%, 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
#218d1d
RGB
rgb(33, 141, 29)
HSL
hsl(118, 66%, 33%)
HWB
hwb(118 11% 45%)
OKLCH
oklch(56.3% 0.174 142.5)
P3
color(display-p3 0.2712 0.5449 0.1922)
HSV
hsv(118, 79%, 55%)
LAB
lab(51.22% -50.81 47.41)
LCH
lch(51.22% 69.49 136.98)
CMYK
cmyk(77%, 0%, 79%, 45%)

Etymology

Steadfast
adjective

Old English stede-fæst, fixed in place — sharing root with German stetig. As a color modifier, steadfast implies a saturated-and-unwavering quality where the hue maintains its visual character without modulation. Sits at the bold-and-firm end of the grid, parallel to unwavering and firm in usage.

Shawl
modifier

Persian shāl, long-folded-wrap. As a color modifier, shawl implies a Persian-Kashmiri-and-paisley-folded-wrap quality, the visual register of Persian-Kashmiri-and-paisley-shawl hand-Persian-Kashmiri-and-paisley-folded-wrap Persian-Kashmiri-and-paisley-shawl-and-Norwich-and-Paisley-loom shawl-and-Persian-Kashmiri-and-paisley-folded-wrap surfaces under Persian-Kashmiri-and-paisley-shawl-and-Norwich-and-Paisley-loom Mughal-Kashmir-and-Norwich-and-Paisley-loom paisley-shawl-light. Sits at the modifier-and-textile end of the grid, parallel to stole and sash 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.

#218d1d
Original
#907f00
Protanopia
#84772a
Deuteranopia
#008978
Tritanopia
#6e6e6e
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
4.29:1
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
4.89:1

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
##218D1D
Display P3
Display P3
color(display-p3 0.2712 0.5449 0.1922)
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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