#66E577#66E577

#66E577 is a very light, vivid green. Relative luminance 0.602; OKLCH L 82.5% C 0.188 H 146.2°. Best body text is #000000 at 13.04:1 contrast (WCAG AA passes).

Color values

HEX	#66E577
RGB	rgb(102, 229, 119)
HSL	hsl(128, 71%, 65%)
HSV	hsv(128, 55%, 90%)
CMYK	cmyk(55.5%, 0%, 48%, 10.2%)
CIE-LAB	lab(81.94, -57.66, 43.02)
CIE-LCH	lch(81.94, 71.94, 143.27°)
OKLab	oklab(82.48% -0.1562 0.1045)
OKLCH	oklch(82.48% 0.188 146.2)
XYZ	xyz(36.8263, 60.1921, 27.1268)
Luminance	0.6019 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E577 #E566D4

analogous

#95E566 #66E577 #66E5B6

triadic

#66E577 #7766E5 #E57766

tetradic

#66E577 #6695E5 #E566D4 #E5B666

square

#66E577 #6695E5 #E566D4 #E5B666

split-complementary

#66E577 #B666E5 #E56695

monochromatic

#1EB232 #32DC49 #66E577 #9AEEA5 #CFF7D4

Accessibility & contrast

On white

1.61

#66E577 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.04

#66E577 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E577

13.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E577	#FFFFFF	#000000	##000000
##66E577	1.00	1.61	13.04	13.04
#FFFFFF	1.61	1.00	21.00	21.00
#000000	13.04	21.00	1.00	1.00
##000000	13.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E8D36E

Deuteranopia (green-blind)

#D7C77F

Tritanopia (blue-blind)

#4DE0CB

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #66e577;
/* rgb */ color: rgb(102, 229, 119);
/* oklch */ color: oklch(82.5% 0.188 146.2);

Tailwind

colors: {
  custom: {
    50: '#9ceea0',
    500: '#66e577',
    950: '#000000',
  },
}

SCSS

$custom: #66e577;
$custom-light: #9ceea0;
$custom-dark: #000000;

JSON

{
  "hex": "#66e577",
  "rgb": {
    "r": 102,
    "g": 229,
    "b": 119
  },
  "hsl": {
    "h": 128.031,
    "s": 70.95,
    "l": 64.902
  },
  "oklch": {
    "l": 0.82477,
    "c": 0.18789,
    "h": 146.2
  },
  "luminance": 0.60195
}

Semantic roles & 50–950 ramp

primary

#66E577

secondary

#B33CA3

accent

#13B9D3

background

#FCFFFC

surface

#F5FEF5

border

#CFD6CF

text

#0F160F

muted

#808580

Preview Lab

Preview with #66E577

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

Preview Lab → · Contrast checker → · Palette generator →