#66CA3E#66CA3E

#66CA3E is a light, vivid green. Relative luminance 0.454; OKLCH L 75.1% C 0.199 H 138.2°. Best body text is #000000 at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#66CA3E
RGB	rgb(102, 202, 62)
HSL	hsl(103, 57%, 52%)
HSV	hsv(103, 69%, 79%)
CMYK	cmyk(49.5%, 0%, 69.3%, 20.8%)
CIE-LAB	lab(73.16, -53.75, 58.17)
CIE-LCH	lch(73.16, 79.20, 132.73°)
OKLab	oklab(75.07% -0.1483 0.1324)
OKLCH	oklch(75.07% 0.199 138.2)
XYZ	xyz(27.4686, 45.4117, 11.8744)
Luminance	0.4541 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CA3E #A23ECA

analogous

#ACCA3E #66CA3E #3ECA5C

triadic

#66CA3E #3E66CA #CA3E66

tetradic

#66CA3E #3EACCA #A23ECA #CA5C3E

square

#66CA3E #3EACCA #A23ECA #CA5C3E

split-complementary

#66CA3E #5C3ECA #CA3EAC

monochromatic

#366F1F #4D9F2C #66CA3E #8CD76E #B2E49E

Accessibility & contrast

On white

2.08

#66CA3E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.08

#66CA3E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CA3E

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CA3E	#FFFFFF	#000000	##000000
##66CA3E	1.00	2.08	10.08	10.08
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.08	21.00	1.00	1.00
##000000	10.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0B929

Deuteranopia (green-blind)

#C3B04B

Tritanopia (blue-blind)

#5EC3AE

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #66ca3e;
/* rgb */ color: rgb(102, 202, 62);
/* oklch */ color: oklch(75.1% 0.199 138.2);

Tailwind

colors: {
  custom: {
    50: '#9adb7b',
    500: '#66ca3e',
    950: '#000000',
  },
}

SCSS

$custom: #66ca3e;
$custom-light: #9adb7b;
$custom-dark: #000000;

JSON

{
  "hex": "#66ca3e",
  "rgb": {
    "r": 102,
    "g": 202,
    "b": 62
  },
  "hsl": {
    "h": 102.857,
    "s": 56.911,
    "l": 51.765
  },
  "oklch": {
    "l": 0.75071,
    "c": 0.19885,
    "h": 138.2
  },
  "luminance": 0.45414
}

Semantic roles & 50–950 ramp

primary

#66CA3E

secondary

#BF93D1

accent

#48E0B5

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CA3E

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

Preview Lab → · Contrast checker → · Palette generator →