#66DA59#66DA59

#66DA59 is a light, vivid green. Relative luminance 0.537; OKLCH L 79.4% C 0.199 H 141.7°. Best body text is #000000 at 11.74:1 contrast (WCAG AA passes).

Color values

HEX	#66DA59
RGB	rgb(102, 218, 89)
HSL	hsl(114, 64%, 60%)
HSV	hsv(114, 59%, 85%)
CMYK	cmyk(53.2%, 0%, 59.2%, 14.5%)
CIE-LAB	lab(78.28, -57.26, 52.57)
CIE-LCH	lch(78.28, 77.73, 137.45°)
OKLab	oklab(79.35% -0.1563 0.1235)
OKLCH	oklch(79.35% 0.199 141.7)
XYZ	xyz(32.3525, 53.6862, 18.1069)
Luminance	0.5369 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DA59 #CD59DA

analogous

#A7DA59 #66DA59 #59DA8C

triadic

#66DA59 #5966DA #DA5966

tetradic

#66DA59 #59A7DA #CD59DA #DA8C59

square

#66DA59 #59A7DA #CD59DA #DA8C59

split-complementary

#66DA59 #8C59DA #DA59A7

monochromatic

#2D9722 #3DC92D #66DA59 #94E58B #C2F0BD

Accessibility & contrast

On white

1.79

#66DA59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.74

#66DA59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DA59

11.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DA59	#FFFFFF	#000000	##000000
##66DA59	1.00	1.79	11.74	11.74
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.74	21.00	1.00	1.00
##000000	11.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC84B

Deuteranopia (green-blind)

#D0BE63

Tritanopia (blue-blind)

#57D4BE

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #66da59;
/* rgb */ color: rgb(102, 218, 89);
/* oklch */ color: oklch(79.4% 0.199 141.7);

Tailwind

colors: {
  custom: {
    50: '#9be68c',
    500: '#66da59',
    950: '#000000',
  },
}

SCSS

$custom: #66da59;
$custom-light: #9be68c;
$custom-dark: #000000;

JSON

{
  "hex": "#66da59",
  "rgb": {
    "r": 102,
    "g": 218,
    "b": 89
  },
  "hsl": {
    "h": 113.953,
    "s": 63.547,
    "l": 60.196
  },
  "oklch": {
    "l": 0.79353,
    "c": 0.19915,
    "h": 141.7
  },
  "luminance": 0.53689
}

Semantic roles & 50–950 ramp

primary

#66DA59

secondary

#923C9B

accent

#1ACBB9

background

#FCFEFC

surface

#F5FCF4

border

#CFD5CE

text

#0F160C

muted

#80847F

Preview Lab

Preview with #66DA59

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

Preview Lab → · Contrast checker → · Palette generator →