#66DD8A#66DD8A

#66DD8A is a light, vivid green. Relative luminance 0.564; OKLCH L 80.8% C 0.160 H 151.2°. Best body text is #000000 at 12.27:1 contrast (WCAG AA passes).

Color values

HEX	#66DD8A
RGB	rgb(102, 221, 138)
HSL	hsl(138, 64%, 63%)
HSV	hsv(138, 54%, 87%)
CMYK	cmyk(53.8%, 0%, 37.6%, 13.3%)
CIE-LAB	lab(79.82, -51.53, 30.83)
CIE-LCH	lch(79.82, 60.05, 149.11°)
OKLab	oklab(80.83% -0.1398 0.0769)
OKLCH	oklch(80.83% 0.16 151.2)
XYZ	xyz(35.9208, 56.3695, 33.0273)
Luminance	0.5637 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DD8A #DD66B9

analogous

#7DDD66 #66DD8A #66DDC5

triadic

#66DD8A #8A66DD #DD8A66

tetradic

#66DD8A #667DDD #DD66B9 #DDC566

square

#66DD8A #667DDD #DD66B9 #DDC566

split-complementary

#66DD8A #C566DD #DD667D

monochromatic

#24A44B #34D264 #66DD8A #98E8B0 #CAF3D7

Accessibility & contrast

On white

1.71

#66DD8A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.27

#66DD8A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DD8A

12.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DD8A	#FFFFFF	#000000	##000000
##66DD8A	1.00	1.71	12.27	12.27
#FFFFFF	1.71	1.00	21.00	21.00
#000000	12.27	21.00	1.00	1.00
##000000	12.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DECD84

Deuteranopia (green-blind)

#CDC18F

Tritanopia (blue-blind)

#49DAC8

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #66dd8a;
/* rgb */ color: rgb(102, 221, 138);
/* oklch */ color: oklch(80.8% 0.160 151.2);

Tailwind

colors: {
  custom: {
    50: '#9ae8ad',
    500: '#66dd8a',
    950: '#000000',
  },
}

SCSS

$custom: #66dd8a;
$custom-light: #9ae8ad;
$custom-dark: #000000;

JSON

{
  "hex": "#66dd8a",
  "rgb": {
    "r": 102,
    "g": 221,
    "b": 138
  },
  "hsl": {
    "h": 138.151,
    "s": 63.636,
    "l": 63.333
  },
  "oklch": {
    "l": 0.8083,
    "c": 0.15955,
    "h": 151.2
  },
  "luminance": 0.56373
}

Semantic roles & 50–950 ramp

primary

#66DD8A

secondary

#A74088

accent

#1A96CB

background

#FCFEFD

surface

#F5FDF7

border

#CFD5D0

text

#0F1610

muted

#808481

Preview Lab

Preview with #66DD8A

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

Preview Lab → · Contrast checker → · Palette generator →