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Substantial Kilt Forest

#288c2d
Notes

Substantial Kilt Forest (#288C2D) is a true green with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (123°, 56%, 35%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#288c2d
RGB
rgb(40, 140, 45)
HSL
hsl(123, 56%, 35%)
HWB
hwb(123 16% 45%)
OKLCH
oklch(56.3% 0.161 143.7)
P3
color(display-p3 0.2806 0.5413 0.2300)
HSV
hsv(123, 71%, 55%)
LAB
lab(51.15% -47.80 41.13)
LCH
lch(51.15% 63.06 139.29)
CMYK
cmyk(71%, 0%, 68%, 45%)

Etymology

Substantial
adjective

Latin substantia, substance — adjectival suffix -al, derived from sub-stāre (to stand under). As a color modifier, substantial implies a saturated-and-weighty-and-material quality where the hue carries visual mass and presence. Sits at the bold-and-weighty end of the grid, parallel to weighty and hefty in usage.

Kilt
modifier

Scots kilt, Highland-pleated-skirt. As a color modifier, kilt implies a Highland-tartan-and-pleated-skirt quality, the visual register of Highland-tartan-and-Black-Watch-kilt hand-Highland-tartan-and-pleated-skirt Highland-tartan-and-Black-Watch-kilt-and-clan-Macleod kilt-and-Highland-tartan surfaces under Highland-tartan-and-Black-Watch-kilt-and-clan-Macleod Highland-clan-and-Edinburgh-tartan-mill tartan-and-pleated-light. Sits at the modifier-and-textile end of the grid, parallel to sash and tabard 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.

#288c2d
Original
#8f7f21
Protanopia
#837736
Deuteranopia
#068878
Tritanopia
#707070
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
4.30:1
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
4.88:1

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
##288C2D
Display P3
Display P3
color(display-p3 0.2806 0.5413 0.2300)
P3 has subtle headroomOKLCH chroma 0.161

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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