#66D587#66D587

#66D587 is a light, vivid green. Relative luminance 0.522; OKLCH L 78.8% C 0.151 H 151.2°. Best body text is #000000 at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#66D587
RGB	rgb(102, 213, 135)
HSL	hsl(138, 57%, 62%)
HSV	hsv(138, 52%, 84%)
CMYK	cmyk(52.1%, 0%, 36.6%, 16.5%)
CIE-LAB	lab(77.38, -48.79, 29.12)
CIE-LCH	lch(77.38, 56.82, 149.17°)
OKLab	oklab(78.81% -0.1325 0.0728)
OKLCH	oklch(78.81% 0.151 151.2)
XYZ	xyz(33.6446, 52.1597, 31.2118)
Luminance	0.5216 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D587 #D566B4

analogous

#7DD566 #66D587 #66D5BF

triadic

#66D587 #8766D5 #D58766

tetradic

#66D587 #667DD5 #D566B4 #D5BF66

square

#66D587 #667DD5 #D566B4 #D5BF66

split-complementary

#66D587 #BF66D5 #D5667D

monochromatic

#29974A #37C762 #66D587 #96E2AD #C6EFD2

Accessibility & contrast

On white

1.84

#66D587 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.43

#66D587 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D587

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D587	#FFFFFF	#000000	##000000
##66D587	1.00	1.84	11.43	11.43
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.43	21.00	1.00	1.00
##000000	11.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6C682

Deuteranopia (green-blind)

#C6BB8C

Tritanopia (blue-blind)

#4CD2C1

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #66d587;
/* rgb */ color: rgb(102, 213, 135);
/* oklch */ color: oklch(78.8% 0.151 151.2);

Tailwind

colors: {
  custom: {
    50: '#99e3aa',
    500: '#66d587',
    950: '#000000',
  },
}

SCSS

$custom: #66d587;
$custom-light: #99e3aa;
$custom-dark: #000000;

JSON

{
  "hex": "#66d587",
  "rgb": {
    "r": 102,
    "g": 213,
    "b": 135
  },
  "hsl": {
    "h": 137.838,
    "s": 56.923,
    "l": 61.765
  },
  "oklch": {
    "l": 0.78811,
    "c": 0.15114,
    "h": 151.2
  },
  "luminance": 0.52163
}

Semantic roles & 50–950 ramp

primary

#66D587

secondary

#9C4382

accent

#2194C4

background

#FCFEFD

surface

#F5FCF7

border

#CFD5D0

text

#0E1510

muted

#7F8481

Preview Lab

Preview with #66D587

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

Preview Lab → · Contrast checker → · Palette generator →