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Stimulating Macaw

#90bd3a
Notes

Stimulating Macaw (#90BD3A) is a true lime 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 (81°, 53%, 48%) 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
#90bd3a
RGB
rgb(144, 189, 58)
HSL
hsl(81, 53%, 48%)
HWB
hwb(81 23% 26%)
OKLCH
oklch(74.1% 0.164 126.6)
HSV
hsv(81, 69%, 74%)
LAB
lab(71.30% -34.13 58.44)
LCH
lch(71.30% 67.68 120.28)
CMYK
cmyk(24%, 0%, 69%, 26%)

Etymology

Stimulating
adjective

Latin stimulāns, spurring on — present-participle of stimulate, derived from stimulus (a goad). As a color modifier, stimulating implies a saturated-and-arousing-and-attentive quality where the hue increases visual-and-cognitive engagement. Sits at the bright-and-active end of the grid, parallel to invigorating and bracing 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

Click any swatch to explore

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.

#90bd3a
Original
#c7b026
Protanopia
#c1ae45
Deuteranopia
#96b4a3
Tritanopia
#aaaaaa
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
2.20:1
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
9.53:1

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