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Plentiful Sumatra

#308b39
Notes

Plentiful Sumatra (#308B39) is a true green with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (126°, 49%, 37%) 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
#308b39
RGB
rgb(48, 139, 57)
HSL
hsl(126, 49%, 37%)
HWB
hwb(126 19% 45%)
OKLCH
oklch(56.4% 0.147 144.9)
HSV
hsv(126, 65%, 55%)
LAB
lab(51.14% -44.34 35.55)
LCH
lch(51.14% 56.83 141.28)
CMYK
cmyk(65%, 0%, 59%, 45%)

Etymology

Plentiful
adjective

Old French plentif, abundant — adjectival suffix -ful, derived from Latin plēnitās (fullness). As a color modifier, plentiful implies a saturated-and-generous quality where the hue carries rich visual abundance without restraint. Sits at the bold-and-saturated end of the grid, parallel to abundant and bountiful.

Sumatra
noun

The Indonesian island — home to the Sumatran orangutan, tiger, and rhinoceros — and the deep green of Sumatran rainforest and Coffea arabica coffee plantations. Sumatra color refers to a Sumatran highland coffee plantation: a saturated, slightly cool deep green with the matte finish of broad-leaved coffee shrubs.

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

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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.

#308b39
Original
#8d7f31
Protanopia
#82773f
Deuteranopia
#198779
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
4.31:1
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

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