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Lively Borneo

#51ae35
Notes

Lively Borneo (#51AE35) 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 (106°, 53%, 45%) 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
#51ae35
RGB
rgb(81, 174, 53)
HSL
hsl(106, 53%, 45%)
HWB
hwb(106 21% 32%)
OKLCH
oklch(66.9% 0.180 139.4)
HSV
hsv(106, 70%, 68%)
LAB
lab(63.57% -49.75 51.42)
LCH
lch(63.57% 71.55 134.05)
CMYK
cmyk(53%, 0%, 70%, 32%)

Etymology

Lively
adjective

An adjectival form of life — used as a color word since the seventeenth century for hues that read as energetic. Lively coral, lively chartreuse: the implication is saturation combined with optical liveliness, the slight visual restlessness of a color that feels animated. Sits at the bright-bucket center.

Borneo
noun

The Southeast Asian island — and the saturated deep green of Borneo rainforest, home to one of the world's three remaining great-ape populations (Pongo pygmaeus, the Bornean orangutan). Borneo color refers to a Sarawak jungle canopy: a saturated, slightly cool deep green with the matte finish of dense tropical foliage.

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.

#51ae35
Original
#b39f23
Protanopia
#a79740
Deuteranopia
#48a896
Tritanopia
#919191
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).
Failon White
2.82:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
7.46:1

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