#66C437#66C437

#66C437 is a light, vivid green. Relative luminance 0.426; OKLCH L 73.5% C 0.196 H 137.3°. Best body text is #000000 at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#66C437
RGB	rgb(102, 196, 55)
HSL	hsl(100, 56%, 49%)
HSV	hsv(100, 72%, 77%)
CMYK	cmyk(48%, 0%, 71.9%, 23.1%)
CIE-LAB	lab(71.27, -51.96, 58.84)
CIE-LCH	lch(71.27, 78.50, 131.45°)
OKLab	oklab(73.5% -0.144 0.1329)
OKLCH	oklch(73.5% 0.196 137.3)
XYZ	xyz(25.9082, 42.5787, 10.4670)
Luminance	0.4258 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C437 #9537C4

analogous

#ADC437 #66C437 #37C44F

triadic

#66C437 #3766C4 #C43766

tetradic

#66C437 #37ADC4 #9537C4 #C44F37

square

#66C437 #37ADC4 #9537C4 #C44F37

split-complementary

#66C437 #4F37C4 #C437AD

monochromatic

#34641C #4D942A #66C437 #8AD465 #AEE194

Accessibility & contrast

On white

2.21

#66C437 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.52

#66C437 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C437

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C437	#FFFFFF	#000000	##000000
##66C437	1.00	2.21	9.52	9.52
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.52	21.00	1.00	1.00
##000000	9.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CAB31E

Deuteranopia (green-blind)

#BEAC45

Tritanopia (blue-blind)

#60BDA8

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #66c437;
/* rgb */ color: rgb(102, 196, 55);
/* oklch */ color: oklch(73.5% 0.196 137.3);

Tailwind

colors: {
  custom: {
    50: '#9ad676',
    500: '#66c437',
    950: '#000000',
  },
}

SCSS

$custom: #66c437;
$custom-light: #9ad676;
$custom-dark: #000000;

JSON

{
  "hex": "#66c437",
  "rgb": {
    "r": 102,
    "g": 196,
    "b": 55
  },
  "hsl": {
    "h": 100,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.73498,
    "c": 0.19594,
    "h": 137.3
  },
  "luminance": 0.4258
}

Semantic roles & 50–950 ramp

primary

#66C437

secondary

#B68BCC

accent

#48DFAD

background

#FAFDF7

surface

#F3FAED

border

#CDD3C8

text

#0F1409

muted

#7F837B

Preview Lab

Preview with #66C437

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

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