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Luminous Verdolaga

#63b833
Notes

Luminous Verdolaga (#63B833) is a true lime 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 (98°, 57%, 46%) 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#63b833
RGB
rgb(99, 184, 51)
HSL
hsl(98, 57%, 46%)
HWB
hwb(98 20% 28%)
OKLCH
oklch(70.3% 0.185 136.6)
HSV
hsv(98, 72%, 72%)
LAB
lab(67.41% -48.46 56.36)
LCH
lch(67.41% 74.33 130.69)
CMYK
cmyk(46%, 0%, 72%, 28%)

Etymology

Luminous
adjective

Latin lūminōsus, full of light — adjectival suffix -ous, derived from lūmen (light). As a color modifier, luminous implies a saturated-and-light-emitting quality where the hue carries internal-glow visual register. Sits at the bright-and-saturated end of the grid, parallel to radiant and resplendent in usage.

Verdolaga
noun

Portulaca oleracea, the Mediterranean and South American purslane — a leafy succulent eaten as a salad green and stewed dish across Spain, Mexico, and Greece. Verdolaga color refers to fresh purslane leaves in a salad bowl: a saturated, slightly cool yellow-green with the satin finish of succulent leaf tissue.

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.

#63b833
Original
#bea91b
Protanopia
#b3a240
Deuteranopia
#5fb19e
Tritanopia
#9c9c9c
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
2.49:1
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
8.43:1

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