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Vibrant Stachys

#21cda8
Notes

Vibrant Stachys (#21CDA8) is a true teal with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (167°, 72%, 47%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#21cda8
RGB
rgb(33, 205, 168)
HSL
hsl(167, 72%, 47%)
HWB
hwb(167 13% 20%)
OKLCH
oklch(75.9% 0.140 172.9)
P3
color(display-p3 0.3824 0.7922 0.6659)
HSV
hsv(167, 84%, 80%)
LAB
lab(74.07% -49.61 6.85)
LCH
lch(74.07% 50.08 172.14)
CMYK
cmyk(84%, 0%, 18%, 20%)

Etymology

Vibrant
adjective

From the Latin vibrare, to shake — used as a color word since the seventeenth century for hues that read as alive and resonant. Vibrant orange, vibrant green: the implication is saturation combined with the optical impression of slight motion or energy. Sits at the bright-bucket center alongside vivid and lively.

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.

#21cda8
Original
#c6bfa6
Protanopia
#b1b0ab
Deuteranopia
#00cfc2
Tritanopia
#a6a6a6
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
2.03:1
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
10.36:1

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
##21CDA8
Display P3
Display P3
color(display-p3 0.3824 0.7922 0.6659)
P3 has subtle headroomOKLCH chroma 0.140

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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