#66E889#66E889

#66E889 is a very light, vivid green. Relative luminance 0.623; OKLCH L 83.5% C 0.176 H 149.8°. Best body text is #000000 at 13.47:1 contrast (WCAG AA passes).

Color values

HEX	#66E889
RGB	rgb(102, 232, 137)
HSL	hsl(136, 74%, 65%)
HSV	hsv(136, 56%, 91%)
CMYK	cmyk(56%, 0%, 40.9%, 9%)
CIE-LAB	lab(83.09, -56.07, 35.64)
CIE-LCH	lch(83.09, 66.43, 147.56°)
OKLab	oklab(83.51% -0.1518 0.0882)
OKLCH	oklch(83.51% 0.176 149.8)
XYZ	xyz(38.8487, 62.3406, 33.6478)
Luminance	0.6234 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E889 #E866C5

analogous

#84E866 #66E889 #66E8CA

triadic

#66E889 #8966E8 #E88966

tetradic

#66E889 #6684E8 #E866C5 #E8CA66

square

#66E889 #6684E8 #E866C5 #E8CA66

split-complementary

#66E889 #CA66E8 #E86684

monochromatic

#1CB846 #31E060 #66E889 #9BF0B2 #D0F8DB

Accessibility & contrast

On white

1.56

#66E889 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.47

#66E889 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E889

13.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E889	#FFFFFF	#000000	##000000
##66E889	1.00	1.56	13.47	13.47
#FFFFFF	1.56	1.00	21.00	21.00
#000000	13.47	21.00	1.00	1.00
##000000	13.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E9D682

Deuteranopia (green-blind)

#D8CA8F

Tritanopia (blue-blind)

#45E4D1

Achromatopsia (no color)

#CFCFCF

Design tokens & code

CSS

--color: #66e889;
/* rgb */ color: rgb(102, 232, 137);
/* oklch */ color: oklch(83.5% 0.176 149.8);

Tailwind

colors: {
  custom: {
    50: '#9cf0ac',
    500: '#66e889',
    950: '#000000',
  },
}

SCSS

$custom: #66e889;
$custom-light: #9cf0ac;
$custom-dark: #000000;

JSON

{
  "hex": "#66e889",
  "rgb": {
    "r": 102,
    "g": 232,
    "b": 137
  },
  "hsl": {
    "h": 136.154,
    "s": 73.864,
    "l": 65.49
  },
  "oklch": {
    "l": 0.83506,
    "c": 0.17554,
    "h": 149.8
  },
  "luminance": 0.62344
}

Semantic roles & 50–950 ramp

primary

#66E889

secondary

#B83A96

accent

#10A1D6

background

#FCFFFD

surface

#F5FEF7

border

#CFD6D0

text

#0F1710

muted

#808581

Preview Lab

Preview with #66E889

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

Preview Lab → · Contrast checker → · Palette generator →