#66DA37#66DA37

#66DA37 is a light, highly saturated green. Relative luminance 0.532; OKLCH L 79.1% C 0.222 H 138.5°. Best body text is #000000 at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#66DA37
RGB	rgb(102, 218, 55)
HSL	hsl(103, 69%, 54%)
HSV	hsv(103, 75%, 85%)
CMYK	cmyk(53.2%, 0%, 74.8%, 14.5%)
CIE-LAB	lab(78.02, -60.19, 65.56)
CIE-LCH	lch(78.02, 89.00, 132.55°)
OKLab	oklab(79.05% -0.1662 0.147)
OKLCH	oklch(79.05% 0.222 138.5)
XYZ	xyz(31.2393, 53.2409, 12.2440)
Luminance	0.5324 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DA37 #AB37DA

analogous

#B8DA37 #66DA37 #37DA59

triadic

#66DA37 #3766DA #DA3766

tetradic

#66DA37 #37B8DA #AB37DA #DA5937

square

#66DA37 #37B8DA #AB37DA #DA5937

split-complementary

#66DA37 #5937DA #DA37B8

monochromatic

#357F18 #4BB321 #66DA37 #8EE46B #B5ED9E

Accessibility & contrast

On white

1.80

#66DA37 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.65

#66DA37 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DA37

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DA37	#FFFFFF	#000000	##000000
##66DA37	1.00	1.80	11.65	11.65
#FFFFFF	1.80	1.00	21.00	21.00
#000000	11.65	21.00	1.00	1.00
##000000	11.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1C712

Deuteranopia (green-blind)

#D2BD48

Tritanopia (blue-blind)

#5CD2BB

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #66da37;
/* rgb */ color: rgb(102, 218, 55);
/* oklch */ color: oklch(79.1% 0.222 138.5);

Tailwind

colors: {
  custom: {
    50: '#9de679',
    500: '#66da37',
    950: '#000000',
  },
}

SCSS

$custom: #66da37;
$custom-light: #9de679;
$custom-dark: #000000;

JSON

{
  "hex": "#66da37",
  "rgb": {
    "r": 102,
    "g": 218,
    "b": 55
  },
  "hsl": {
    "h": 102.699,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.79054,
    "c": 0.22182,
    "h": 138.5
  },
  "luminance": 0.53243
}

Semantic roles & 50–950 ramp

primary

#66DA37

secondary

#6D2F86

accent

#3CECB9

background

#FCFEFB

surface

#F6FCF2

border

#D0D5CC

text

#0F160A

muted

#80847D

Preview Lab

Preview with #66DA37

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

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