#66CE59#66CE59

#66CE59 is a light, vivid green. Relative luminance 0.477; OKLCH L 76.4% C 0.184 H 141.5°. Best body text is #000000 at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#66CE59
RGB	rgb(102, 206, 89)
HSL	hsl(113, 54%, 58%)
HSV	hsv(113, 57%, 81%)
CMYK	cmyk(50.5%, 0%, 56.8%, 19.2%)
CIE-LAB	lab(74.63, -52.67, 48.33)
CIE-LCH	lch(74.63, 71.48, 137.46°)
OKLab	oklab(76.35% -0.1438 0.1143)
OKLCH	oklch(76.35% 0.184 141.5)
XYZ	xyz(29.3526, 47.6864, 17.1069)
Luminance	0.4769 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CE59 #C159CE

analogous

#A1CE59 #66CE59 #59CE86

triadic

#66CE59 #5966CE #CE5966

tetradic

#66CE59 #59A1CE #C159CE #CE8659

square

#66CE59 #59A1CE #C159CE #CE8659

split-complementary

#66CE59 #8659CE #CE59A1

monochromatic

#328527 #43B535 #66CE59 #92DC88 #BDEAB8

Accessibility & contrast

On white

1.99

#66CE59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.54

#66CE59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CE59

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CE59	#FFFFFF	#000000	##000000
##66CE59	1.00	1.99	10.54	10.54
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.54	21.00	1.00	1.00
##000000	10.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BD4D

Deuteranopia (green-blind)

#C5B462

Tritanopia (blue-blind)

#5AC8B4

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #66ce59;
/* rgb */ color: rgb(102, 206, 89);
/* oklch */ color: oklch(76.4% 0.184 141.5);

Tailwind

colors: {
  custom: {
    50: '#99de8b',
    500: '#66ce59',
    950: '#000000',
  },
}

SCSS

$custom: #66ce59;
$custom-light: #99de8b;
$custom-dark: #000000;

JSON

{
  "hex": "#66ce59",
  "rgb": {
    "r": 102,
    "g": 206,
    "b": 89
  },
  "hsl": {
    "h": 113.333,
    "s": 54.419,
    "l": 57.843
  },
  "oklch": {
    "l": 0.76352,
    "c": 0.18369,
    "h": 141.5
  },
  "luminance": 0.47689
}

Semantic roles & 50–950 ramp

primary

#66CE59

secondary

#D4AAD9

accent

#4ADECD

background

#F9FDF8

surface

#F2FBF0

border

#CCD4CB

text

#0F150C

muted

#7E837D

Preview Lab

Preview with #66CE59

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

Preview Lab → · Contrast checker → · Palette generator →