#66C129#66C129

#66C129 is a light, vivid yellow-green. Relative luminance 0.411; OKLCH L 72.6% C 0.200 H 136.1°. Best body text is #000000 at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#66C129
RGB	rgb(102, 193, 41)
HSL	hsl(96, 65%, 46%)
HSV	hsv(96, 79%, 76%)
CMYK	cmyk(47.2%, 0%, 78.8%, 24.3%)
CIE-LAB	lab(70.26, -51.68, 62.52)
CIE-LCH	lch(70.26, 81.11, 129.58°)
OKLab	oklab(72.65% -0.1441 0.1386)
OKLCH	oklch(72.65% 0.2 136.1)
XYZ	xyz(24.9490, 41.1232, 8.7203)
Luminance	0.4113 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C129 #8429C1

analogous

#B2C129 #66C129 #29C138

triadic

#66C129 #2966C1 #C12966

tetradic

#66C129 #29B2C1 #8429C1 #C13829

square

#66C129 #29B2C1 #8429C1 #C13829

split-complementary

#66C129 #3829C1 #C129B2

monochromatic

#315C14 #4B8F1E #66C129 #86D94E #A8E480

Accessibility & contrast

On white

2.28

#66C129 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.23

#66C129 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C129

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C129	#FFFFFF	#000000	##000000
##66C129	1.00	2.28	9.23	9.23
#FFFFFF	2.28	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)

#C8B000

Deuteranopia (green-blind)

#BCA93A

Tritanopia (blue-blind)

#62BAA5

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #66c129;
/* rgb */ color: rgb(102, 193, 41);
/* oklch */ color: oklch(72.6% 0.200 136.1);

Tailwind

colors: {
  custom: {
    50: '#9ad46f',
    500: '#66c129',
    950: '#000000',
  },
}

SCSS

$custom: #66c129;
$custom-light: #9ad46f;
$custom-dark: #000000;

JSON

{
  "hex": "#66c129",
  "rgb": {
    "r": 102,
    "g": 193,
    "b": 41
  },
  "hsl": {
    "h": 95.921,
    "s": 64.957,
    "l": 45.882
  },
  "oklch": {
    "l": 0.72646,
    "c": 0.19993,
    "h": 136.1
  },
  "luminance": 0.41125
}

Semantic roles & 50–950 ramp

primary

#66C129

secondary

#AB79CD

accent

#40E8A4

background

#FAFDF7

surface

#F3FAED

border

#CDD3C8

text

#0F1408

muted

#7F837B

Preview Lab

Preview with #66C129

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

Preview Lab → · Contrast checker → · Palette generator →