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Steadfast Parakeet

#37a924
Notes

Steadfast Parakeet (#37A924) is a true green with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (111°, 65%, 40%) 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
#37a924
RGB
rgb(55, 169, 36)
HSL
hsl(111, 65%, 40%)
HWB
hwb(111 14% 34%)
OKLCH
oklch(64.6% 0.195 141.2)
HSV
hsv(111, 79%, 66%)
LAB
lab(61.06% -55.60 54.78)
LCH
lch(61.06% 78.05 135.43)
CMYK
cmyk(67%, 0%, 79%, 34%)

Etymology

Steadfast
adjective

Old English stede-fæst, fixed in place — sharing root with German stetig. As a color modifier, steadfast implies a saturated-and-unwavering quality where the hue maintains its visual character without modulation. Sits at the bold-and-firm end of the grid, parallel to unwavering and firm in usage.

Parakeet
noun

The smaller members of the parrot family — particularly Melopsittacus undulatus, the Australian budgerigar that became the world's most-kept pet bird. The color refers to a typical green-form budgerigar's plumage: a saturated, slightly yellow-shifted green with the matte finish of carotenoid-and-structural feather color.

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.

#37a924
Original
#ad9900
Protanopia
#a09033
Deuteranopia
#20a490
Tritanopia
#878787
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).
AA Largeon White
3.06:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.86:1

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