#66D53E#66D53E

#66D53E is a light, highly saturated green. Relative luminance 0.508; OKLCH L 77.8% C 0.212 H 138.8°. Best body text is #000000 at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#66D53E
RGB	rgb(102, 213, 62)
HSL	hsl(104, 64%, 54%)
HSV	hsv(104, 71%, 84%)
CMYK	cmyk(52.1%, 0%, 70.9%, 16.5%)
CIE-LAB	lab(76.53, -57.88, 61.65)
CIE-LCH	lch(76.53, 84.56, 133.19°)
OKLab	oklab(77.84% -0.1595 0.1397)
OKLCH	oklch(77.84% 0.212 138.8)
XYZ	xyz(30.1421, 50.7587, 12.7656)
Luminance	0.5076 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D53E #AD3ED5

analogous

#B2D53E #66D53E #3ED562

triadic

#66D53E #3E66D5 #D53E66

tetradic

#66D53E #3EB2D5 #AD3ED5 #D5623E

square

#66D53E #3EB2D5 #AD3ED5 #D5623E

split-complementary

#66D53E #623ED5 #D53EB2

monochromatic

#357D1B #4BB026 #66D53E #8EE070 #B6EBA3

Accessibility & contrast

On white

1.88

#66D53E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.15

#66D53E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D53E

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D53E	#FFFFFF	#000000	##000000
##66D53E	1.00	1.88	11.15	11.15
#FFFFFF	1.88	1.00	21.00	21.00
#000000	11.15	21.00	1.00	1.00
##000000	11.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DBC325

Deuteranopia (green-blind)

#CDB94D

Tritanopia (blue-blind)

#5CCEB7

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #66d53e;
/* rgb */ color: rgb(102, 213, 62);
/* oklch */ color: oklch(77.8% 0.212 138.8);

Tailwind

colors: {
  custom: {
    50: '#9ce37c',
    500: '#66d53e',
    950: '#000000',
  },
}

SCSS

$custom: #66d53e;
$custom-light: #9ce37c;
$custom-dark: #000000;

JSON

{
  "hex": "#66d53e",
  "rgb": {
    "r": 102,
    "g": 213,
    "b": 62
  },
  "hsl": {
    "h": 104.106,
    "s": 64.255,
    "l": 53.922
  },
  "oklch": {
    "l": 0.77844,
    "c": 0.21205,
    "h": 138.8
  },
  "luminance": 0.50761
}

Semantic roles & 50–950 ramp

primary

#66D53E

secondary

#6F3285

accent

#41E7BB

background

#FCFEFB

surface

#F6FCF2

border

#D0D5CC

text

#0F150A

muted

#80847D

Preview Lab

Preview with #66D53E

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

Preview Lab → · Contrast checker → · Palette generator →