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Bright Heath

#56bb60
Notes

Bright Heath (#56BB60) 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 (126°, 43%, 54%) 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
#56bb60
RGB
rgb(86, 187, 96)
HSL
hsl(126, 43%, 54%)
HWB
hwb(126 34% 27%)
OKLCH
oklch(71.0% 0.160 145.6)
HSV
hsv(126, 54%, 73%)
LAB
lab(68.29% -48.52 37.17)
LCH
lch(68.29% 61.12 142.55)
CMYK
cmyk(54%, 0%, 49%, 27%)

Etymology

Bright
adjective

Old English beorht, shining, luminous — cognate with the German Bracht, splendor. Applied to color since at least the medieval period for hues that read as luminous: not just light in value but optically active, as if scattering more light back than a dimmer color of the same lightness would. Sits at the bright-bucket center alongside vivid and brilliant.

Heath
noun

An open uncultivated land covered by heather (Calluna), gorse (Ulex), and grass — particularly the lowland heaths of southern England. Heath color refers to a Surrey heath in early summer: a soft, slightly muted deep yellow-green with the matte finish of woody-and-grass undergrowth.

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.

#56bb60
Original
#beac59
Protanopia
#b0a366
Deuteranopia
#44b7a6
Tritanopia
#9f9f9f
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
2.42:1
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
8.67:1

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