#66CB4D#66CB4D

#66CB4D is a light, vivid green. Relative luminance 0.461; OKLCH L 75.5% C 0.189 H 139.8°. Best body text is #000000 at 10.21:1 contrast (WCAG AA passes).

Color values

HEX	#66CB4D
RGB	rgb(102, 203, 77)
HSL	hsl(108, 55%, 55%)
HSV	hsv(108, 62%, 80%)
CMYK	cmyk(49.8%, 0%, 62.1%, 20.4%)
CIE-LAB	lab(73.59, -52.79, 52.50)
CIE-LCH	lch(73.59, 74.45, 135.15°)
OKLab	oklab(75.46% -0.1448 0.1222)
OKLCH	oklch(75.46% 0.189 139.8)
XYZ	xyz(28.1738, 46.0704, 14.4276)
Luminance	0.4607 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CB4D #B24DCB

analogous

#A5CB4D #66CB4D #4DCB73

triadic

#66CB4D #4D66CB #CB4D66

tetradic

#66CB4D #4DA5CB #B24DCB #CB734D

square

#66CB4D #4DA5CB #B24DCB #CB734D

split-complementary

#66CB4D #734DCB #CB4DA5

monochromatic

#357A24 #49A931 #66CB4D #8FD97C #B7E7AC

Accessibility & contrast

On white

2.06

#66CB4D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.21

#66CB4D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CB4D

10.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CB4D	#FFFFFF	#000000	##000000
##66CB4D	1.00	2.06	10.21	10.21
#FFFFFF	2.06	1.00	21.00	21.00
#000000	10.21	21.00	1.00	1.00
##000000	10.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0BA3E

Deuteranopia (green-blind)

#C3B157

Tritanopia (blue-blind)

#5CC5B0

Achromatopsia (no color)

#B5B5B5

Design tokens & code

CSS

--color: #66cb4d;
/* rgb */ color: rgb(102, 203, 77);
/* oklch */ color: oklch(75.5% 0.189 139.8);

Tailwind

colors: {
  custom: {
    50: '#9adb84',
    500: '#66cb4d',
    950: '#000000',
  },
}

SCSS

$custom: #66cb4d;
$custom-light: #9adb84;
$custom-dark: #000000;

JSON

{
  "hex": "#66cb4d",
  "rgb": {
    "r": 102,
    "g": 203,
    "b": 77
  },
  "hsl": {
    "h": 108.095,
    "s": 54.783,
    "l": 54.902
  },
  "oklch": {
    "l": 0.75463,
    "c": 0.18947,
    "h": 139.8
  },
  "luminance": 0.46072
}

Semantic roles & 50–950 ramp

primary

#66CB4D

secondary

#CA9FD4

accent

#4ADEC1

background

#F9FDF8

surface

#F2FBEF

border

#CCD4CA

text

#0F150B

muted

#7E837C

Preview Lab

Preview with #66CB4D

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

Preview Lab → · Contrast checker → · Palette generator →