#66C036#66C036

#66C036 is a light, vivid yellow-green. Relative luminance 0.408; OKLCH L 72.5% C 0.192 H 136.9°. Best body text is #000000 at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#66C036
RGB	rgb(102, 192, 54)
HSL	hsl(99, 56%, 48%)
HSV	hsv(99, 72%, 75%)
CMYK	cmyk(46.9%, 0%, 71.9%, 24.7%)
CIE-LAB	lab(70.03, -50.47, 57.95)
CIE-LCH	lch(70.03, 76.85, 131.05°)
OKLab	oklab(72.48% -0.14 0.1309)
OKLCH	oklch(72.48% 0.192 136.9)
XYZ	xyz(24.9942, 40.7888, 10.0453)
Luminance	0.4079 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C036 #9036C0

analogous

#ABC036 #66C036 #36C04B

triadic

#66C036 #3666C0 #C03666

tetradic

#66C036 #36ABC0 #9036C0 #C04B36

square

#66C036 #36ABC0 #9036C0 #C04B36

split-complementary

#66C036 #4B36C0 #C036AB

monochromatic

#33601B #4D9029 #66C036 #88D261 #ACE090

Accessibility & contrast

On white

2.29

#66C036 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.16

#66C036 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C036

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C036	#FFFFFF	#000000	##000000
##66C036	1.00	2.29	9.16	9.16
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.16	21.00	1.00	1.00
##000000	9.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6B01E

Deuteranopia (green-blind)

#BBA843

Tritanopia (blue-blind)

#61B9A5

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #66c036;
/* rgb */ color: rgb(102, 192, 54);
/* oklch */ color: oklch(72.5% 0.192 136.9);

Tailwind

colors: {
  custom: {
    50: '#99d475',
    500: '#66c036',
    950: '#000000',
  },
}

SCSS

$custom: #66c036;
$custom-light: #99d475;
$custom-dark: #000000;

JSON

{
  "hex": "#66c036",
  "rgb": {
    "r": 102,
    "g": 192,
    "b": 54
  },
  "hsl": {
    "h": 99.13,
    "s": 56.098,
    "l": 48.235
  },
  "oklch": {
    "l": 0.72477,
    "c": 0.19168,
    "h": 136.9
  },
  "luminance": 0.4079
}

Semantic roles & 50–950 ramp

primary

#66C036

secondary

#B387CB

accent

#48DFAB

background

#F9FDF7

surface

#F2FAED

border

#CCD3C8

text

#0F1409

muted

#7E837B

Preview Lab

Preview with #66C036

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

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