#66C135#66C135

#66C135 is a light, vivid yellow-green. Relative luminance 0.412; OKLCH L 72.7% C 0.194 H 136.9°. Best body text is #000000 at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#66C135
RGB	rgb(102, 193, 53)
HSL	hsl(99, 57%, 48%)
HSV	hsv(99, 73%, 76%)
CMYK	cmyk(47.2%, 0%, 72.5%, 24.3%)
CIE-LAB	lab(70.33, -50.94, 58.62)
CIE-LCH	lch(70.33, 77.66, 130.99°)
OKLab	oklab(72.72% -0.1413 0.1322)
OKLCH	oklch(72.72% 0.194 136.9)
XYZ	xyz(25.1913, 41.2201, 9.9963)
Luminance	0.4122 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C135 #9035C1

analogous

#ACC135 #66C135 #35C14A

triadic

#66C135 #3566C1 #C13566

tetradic

#66C135 #35ACC1 #9035C1 #C14A35

square

#66C135 #35ACC1 #9035C1 #C14A35

split-complementary

#66C135 #4A35C1 #C135AC

monochromatic

#33611B #4D9128 #66C135 #88D360 #ACE090

Accessibility & contrast

On white

2.27

#66C135 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.24

#66C135 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C135

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C135	#FFFFFF	#000000	##000000
##66C135	1.00	2.27	9.24	9.24
#FFFFFF	2.27	1.00	21.00	21.00
#000000	9.24	21.00	1.00	1.00
##000000	9.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C7B11B

Deuteranopia (green-blind)

#BBA943

Tritanopia (blue-blind)

#61BAA6

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #66c135;
/* rgb */ color: rgb(102, 193, 53);
/* oklch */ color: oklch(72.7% 0.194 136.9);

Tailwind

colors: {
  custom: {
    50: '#99d475',
    500: '#66c135',
    950: '#000000',
  },
}

SCSS

$custom: #66c135;
$custom-light: #99d475;
$custom-dark: #000000;

JSON

{
  "hex": "#66c135",
  "rgb": {
    "r": 102,
    "g": 193,
    "b": 53
  },
  "hsl": {
    "h": 99,
    "s": 56.911,
    "l": 48.235
  },
  "oklch": {
    "l": 0.72723,
    "c": 0.1935,
    "h": 136.9
  },
  "luminance": 0.41222
}

Semantic roles & 50–950 ramp

primary

#66C135

secondary

#B387CB

accent

#48E0AB

background

#F9FDF7

surface

#F2FAED

border

#CCD3C8

text

#0F1409

muted

#7E837B

Preview Lab

Preview with #66C135

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

Preview Lab → · Contrast checker → · Palette generator →