#66C72A#66C72A

#66C72A is a light, highly saturated yellow-green. Relative luminance 0.438; OKLCH L 74.2% C 0.206 H 136.6°. Best body text is #000000 at 9.77:1 contrast (WCAG AA passes).

Color values

HEX	#66C72A
RGB	rgb(102, 199, 42)
HSL	hsl(97, 65%, 47%)
HSV	hsv(97, 79%, 78%)
CMYK	cmyk(48.7%, 0%, 78.9%, 22%)
CIE-LAB	lab(72.12, -53.92, 63.96)
CIE-LCH	lch(72.12, 83.66, 130.13°)
OKLab	oklab(74.18% -0.15 0.1418)
OKLCH	oklch(74.18% 0.206 136.6)
XYZ	xyz(26.3201, 43.8370, 9.2645)
Luminance	0.4384 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C72A #8B2AC7

analogous

#B5C72A #66C72A #2AC73D

triadic

#66C72A #2A66C7 #C72A66

tetradic

#66C72A #2AB5C7 #8B2AC7 #C73D2A

square

#66C72A #2AB5C7 #8B2AC7 #C73D2A

split-complementary

#66C72A #3D2AC7 #C72AB5

monochromatic

#326215 #4C941F #66C72A #87DB53 #AAE586

Accessibility & contrast

On white

2.15

#66C72A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.77

#66C72A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C72A

9.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C72A	#FFFFFF	#000000	##000000
##66C72A	1.00	2.15	9.77	9.77
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.77	21.00	1.00	1.00
##000000	9.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CEB600

Deuteranopia (green-blind)

#C1AE3C

Tritanopia (blue-blind)

#61C0AA

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #66c72a;
/* rgb */ color: rgb(102, 199, 42);
/* oklch */ color: oklch(74.2% 0.206 136.6);

Tailwind

colors: {
  custom: {
    50: '#9bd971',
    500: '#66c72a',
    950: '#000000',
  },
}

SCSS

$custom: #66c72a;
$custom-light: #9bd971;
$custom-dark: #000000;

JSON

{
  "hex": "#66c72a",
  "rgb": {
    "r": 102,
    "g": 199,
    "b": 42
  },
  "hsl": {
    "h": 97.07,
    "s": 65.145,
    "l": 47.255
  },
  "oklch": {
    "l": 0.74175,
    "c": 0.20644,
    "h": 136.6
  },
  "luminance": 0.43839
}

Semantic roles & 50–950 ramp

primary

#66C72A

secondary

#B07ECF

accent

#40E8A8

background

#FAFDF7

surface

#F3FAED

border

#CDD3C8

text

#0F1508

muted

#7F837B

Preview Lab

Preview with #66C72A

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

Preview Lab → · Contrast checker → · Palette generator →