#66CD4B#66CD4B

#66CD4B is a light, vivid green. Relative luminance 0.470; OKLCH L 75.9% C 0.194 H 139.7°. Best body text is #000000 at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#66CD4B
RGB	rgb(102, 205, 75)
HSL	hsl(108, 57%, 55%)
HSV	hsv(108, 63%, 80%)
CMYK	cmyk(50.2%, 0%, 63.4%, 19.6%)
CIE-LAB	lab(74.19, -53.76, 54.02)
CIE-LCH	lch(74.19, 76.21, 134.86°)
OKLab	oklab(75.94% -0.1475 0.1252)
OKLCH	oklch(75.94% 0.194 139.7)
XYZ	xyz(28.5797, 46.9933, 14.2199)
Luminance	0.4699 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CD4B #B24BCD

analogous

#A7CD4B #66CD4B #4BCD71

triadic

#66CD4B #4B66CD #CD4B66

tetradic

#66CD4B #4BA7CD #B24BCD #CD714B

square

#66CD4B #4BA7CD #B24BCD #CD714B

split-complementary

#66CD4B #714BCD #CD4BA7

monochromatic

#357B22 #49AB30 #66CD4B #8FDA7B #B7E8AB

Accessibility & contrast

On white

2.02

#66CD4B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.40

#66CD4B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CD4B

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CD4B	#FFFFFF	#000000	##000000
##66CD4B	1.00	2.02	10.40	10.40
#FFFFFF	2.02	1.00	21.00	21.00
#000000	10.40	21.00	1.00	1.00
##000000	10.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3BC3B

Deuteranopia (green-blind)

#C5B356

Tritanopia (blue-blind)

#5CC7B2

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #66cd4b;
/* rgb */ color: rgb(102, 205, 75);
/* oklch */ color: oklch(75.9% 0.194 139.7);

Tailwind

colors: {
  custom: {
    50: '#9add82',
    500: '#66cd4b',
    950: '#000000',
  },
}

SCSS

$custom: #66cd4b;
$custom-light: #9add82;
$custom-dark: #000000;

JSON

{
  "hex": "#66cd4b",
  "rgb": {
    "r": 102,
    "g": 205,
    "b": 75
  },
  "hsl": {
    "h": 107.538,
    "s": 56.522,
    "l": 54.902
  },
  "oklch": {
    "l": 0.75945,
    "c": 0.19352,
    "h": 139.7
  },
  "luminance": 0.46995
}

Semantic roles & 50–950 ramp

primary

#66CD4B

secondary

#CA9FD5

accent

#48E0C0

background

#FAFDF8

surface

#F3FBEF

border

#CDD4CA

text

#0F150B

muted

#7F837C

Preview Lab

Preview with #66CD4B

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

Preview Lab → · Contrast checker → · Palette generator →