#66CD59#66CD59

#66CD59 is a light, vivid green. Relative luminance 0.472; OKLCH L 76.1% C 0.182 H 141.5°. Best body text is #000000 at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#66CD59
RGB	rgb(102, 205, 89)
HSL	hsl(113, 54%, 58%)
HSV	hsv(113, 57%, 80%)
CMYK	cmyk(50.2%, 0%, 56.6%, 19.6%)
CIE-LAB	lab(74.32, -52.28, 47.98)
CIE-LCH	lch(74.32, 70.95, 137.46°)
OKLab	oklab(76.1% -0.1427 0.1136)
OKLCH	oklch(76.1% 0.182 141.5)
XYZ	xyz(29.1126, 47.2065, 17.0269)
Luminance	0.4721 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CD59 #C059CD

analogous

#A0CD59 #66CD59 #59CD86

triadic

#66CD59 #5966CD #CD5966

tetradic

#66CD59 #59A0CD #C059CD #CD8659

square

#66CD59 #59A0CD #C059CD #CD8659

split-complementary

#66CD59 #8659CD #CD59A0

monochromatic

#328428 #44B336 #66CD59 #91DB88 #BDE9B7

Accessibility & contrast

On white

2.01

#66CD59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.44

#66CD59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CD59

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CD59	#FFFFFF	#000000	##000000
##66CD59	1.00	2.01	10.44	10.44
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.44	21.00	1.00	1.00
##000000	10.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D2BC4E

Deuteranopia (green-blind)

#C4B362

Tritanopia (blue-blind)

#5AC7B3

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #66cd59;
/* rgb */ color: rgb(102, 205, 89);
/* oklch */ color: oklch(76.1% 0.182 141.5);

Tailwind

colors: {
  custom: {
    50: '#99dd8b',
    500: '#66cd59',
    950: '#000000',
  },
}

SCSS

$custom: #66cd59;
$custom-light: #99dd8b;
$custom-dark: #000000;

JSON

{
  "hex": "#66cd59",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 89
  },
  "hsl": {
    "h": 113.276,
    "s": 53.704,
    "l": 57.647
  },
  "oklch": {
    "l": 0.76101,
    "c": 0.18238,
    "h": 141.5
  },
  "luminance": 0.47209
}

Semantic roles & 50–950 ramp

primary

#66CD59

secondary

#D3AAD8

accent

#4BDDCD

background

#F9FDF8

surface

#F2FBF0

border

#CCD4CB

text

#0F150C

muted

#7E837D

Preview Lab

Preview with #66CD59

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

Preview Lab → · Contrast checker → · Palette generator →