#66C12F#66C12F

#66C12F is a light, vivid yellow-green. Relative luminance 0.412; OKLCH L 72.7% C 0.197 H 136.5°. Best body text is #000000 at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#66C12F
RGB	rgb(102, 193, 47)
HSL	hsl(97, 61%, 47%)
HSV	hsv(97, 76%, 76%)
CMYK	cmyk(47.2%, 0%, 75.6%, 24.3%)
CIE-LAB	lab(70.29, -51.33, 60.66)
CIE-LCH	lch(70.29, 79.46, 130.24°)
OKLab	oklab(72.68% -0.1428 0.1356)
OKLCH	oklch(72.68% 0.197 136.5)
XYZ	xyz(25.0618, 41.1683, 9.3145)
Luminance	0.4117 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C12F #8A2FC1

analogous

#AFC12F #66C12F #2FC141

triadic

#66C12F #2F66C1 #C12F66

tetradic

#66C12F #2FAFC1 #8A2FC1 #C1412F

square

#66C12F #2FAFC1 #8A2FC1 #C1412F

split-complementary

#66C12F #412FC1 #C12FAF

monochromatic

#325F17 #4C9023 #66C12F #87D657 #AAE288

Accessibility & contrast

On white

2.27

#66C12F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.23

#66C12F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C12F

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C12F	#FFFFFF	#000000	##000000
##66C12F	1.00	2.27	9.23	9.23
#FFFFFF	2.27	1.00	21.00	21.00
#000000	9.23	21.00	1.00	1.00
##000000	9.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8B10C

Deuteranopia (green-blind)

#BCA93E

Tritanopia (blue-blind)

#61BAA5

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #66c12f;
/* rgb */ color: rgb(102, 193, 47);
/* oklch */ color: oklch(72.7% 0.197 136.5);

Tailwind

colors: {
  custom: {
    50: '#9ad472',
    500: '#66c12f',
    950: '#000000',
  },
}

SCSS

$custom: #66c12f;
$custom-light: #9ad472;
$custom-dark: #000000;

JSON

{
  "hex": "#66c12f",
  "rgb": {
    "r": 102,
    "g": 193,
    "b": 47
  },
  "hsl": {
    "h": 97.397,
    "s": 60.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.72682,
    "c": 0.1969,
    "h": 136.5
  },
  "luminance": 0.4117
}

Semantic roles & 50–950 ramp

primary

#66C12F

secondary

#AF80CC

accent

#44E4A8

background

#FAFDF7

surface

#F3FAED

border

#CDD3C8

text

#0F1409

muted

#7F837B

Preview Lab

Preview with #66C12F

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

Preview Lab → · Contrast checker → · Palette generator →