#66DA8A#66DA8A

#66DA8A is a light, vivid green. Relative luminance 0.548; OKLCH L 80.1% C 0.155 H 151.5°. Best body text is #000000 at 11.96:1 contrast (WCAG AA passes).

Color values

HEX	#66DA8A
RGB	rgb(102, 218, 138)
HSL	hsl(139, 61%, 63%)
HSV	hsv(139, 53%, 85%)
CMYK	cmyk(53.2%, 0%, 36.7%, 14.5%)
CIE-LAB	lab(78.93, -50.32, 29.64)
CIE-LCH	lch(78.93, 58.40, 149.50°)
OKLab	oklab(80.1% -0.1366 0.0741)
OKLCH	oklch(80.1% 0.155 151.5)
XYZ	xyz(35.1358, 54.7995, 32.7656)
Luminance	0.5480 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DA8A #DA66B6

analogous

#7CDA66 #66DA8A #66DAC4

triadic

#66DA8A #8A66DA #DA8A66

tetradic

#66DA8A #667CDA #DA66B6 #DAC466

square

#66DA8A #667CDA #DA66B6 #DAC466

split-complementary

#66DA8A #C466DA #DA667C

monochromatic

#269F4C #35CE64 #66DA8A #97E6B0 #C9F2D5

Accessibility & contrast

On white

1.76

#66DA8A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.96

#66DA8A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DA8A

11.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DA8A	#FFFFFF	#000000	##000000
##66DA8A	1.00	1.76	11.96	11.96
#FFFFFF	1.76	1.00	21.00	21.00
#000000	11.96	21.00	1.00	1.00
##000000	11.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DBCA85

Deuteranopia (green-blind)

#CBBF8F

Tritanopia (blue-blind)

#4AD7C6

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #66da8a;
/* rgb */ color: rgb(102, 218, 138);
/* oklch */ color: oklch(80.1% 0.155 151.5);

Tailwind

colors: {
  custom: {
    50: '#9ae6ad',
    500: '#66da8a',
    950: '#000000',
  },
}

SCSS

$custom: #66da8a;
$custom-light: #9ae6ad;
$custom-dark: #000000;

JSON

{
  "hex": "#66da8a",
  "rgb": {
    "r": 102,
    "g": 218,
    "b": 138
  },
  "hsl": {
    "h": 138.621,
    "s": 61.053,
    "l": 62.745
  },
  "oklch": {
    "l": 0.80095,
    "c": 0.15536,
    "h": 151.5
  },
  "luminance": 0.54803
}

Semantic roles & 50–950 ramp

primary

#66DA8A

secondary

#A34185

accent

#1D93C9

background

#FCFEFD

surface

#F5FCF7

border

#CFD5D0

text

#0F1610

muted

#808481

Preview Lab

Preview with #66DA8A

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →