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Luminous Macaw

#b6d566
Notes

Luminous Macaw (#B6D566) 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 (77°, 57%, 62%) 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
#b6d566
RGB
rgb(182, 213, 102)
HSL
hsl(77, 57%, 62%)
HWB
hwb(77 40% 16%)
OKLCH
oklch(82.7% 0.142 122.5)
HSV
hsv(77, 52%, 84%)
LAB
lab(81.01% -27.06 50.87)
LCH
lch(81.01% 57.62 118.02)
CMYK
cmyk(15%, 0%, 52%, 16%)

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.

Macaw
noun

The genus Ara — large neotropical parrots — particularly A. militaris (military macaw) whose plumage is dominated by saturated green. The color refers to a military macaw's wing covers: a saturated, slightly cool deep green with the matte finish of structural-and-pigment feather color. Cooler than parakeet.

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.

#b6d566
Original
#e0ca5c
Protanopia
#dcc96d
Deuteranopia
#beccbc
Tritanopia
#c6c6c6
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
1.65:1
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
12.70:1

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