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Radiant Stachys

#28bc64
Notes

Radiant Stachys (#28BC64) 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 (144°, 65%, 45%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#28bc64
RGB
rgb(40, 188, 100)
HSL
hsl(144, 65%, 45%)
HWB
hwb(144 16% 26%)
OKLCH
oklch(70.1% 0.174 151.5)
P3
color(display-p3 0.3603 0.7267 0.4273)
HSV
hsv(144, 79%, 74%)
LAB
lab(67.53% -57.01 33.95)
LCH
lch(67.53% 66.36 149.22)
CMYK
cmyk(79%, 0%, 47%, 26%)

Etymology

Radiant
adjective

From the Latin radiare, to emit rays — used as a color word since the seventeenth century for hues that read as luminous and emitting. Radiant gold, radiant pink: the implication is high luminance combined with the optical impression of an outward light. Sits in the bright-bucket center alongside glowing.

Stachys
noun

The genus Stachys — particularly S. byzantina (lamb's ear), the cottage-garden perennial with thick silver-velvet woolly foliage. The color refers to a fresh S. byzantina leaf: a soft, slightly cool pale silver-green with the dense velvet matte finish of trichome-covered leaf surface.

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.

#28bc64
Original
#bdac5d
Protanopia
#aca06a
Deuteranopia
#00b9a7
Tritanopia
#969696
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
2.48:1
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
8.47:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##28BC64
Display P3
Display P3
color(display-p3 0.3603 0.7267 0.4273)
P3 has subtle headroomOKLCH chroma 0.174

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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