#66EA38#66EA38

#66EA38 is a very light, highly saturated green. Relative luminance 0.620; OKLCH L 83.1% C 0.239 H 139.2°. Best body text is #000000 at 13.39:1 contrast (WCAG AA passes).

Color values

HEX	#66EA38
RGB	rgb(102, 234, 56)
HSL	hsl(104, 81%, 57%)
HSV	hsv(104, 76%, 92%)
CMYK	cmyk(56.4%, 0%, 76.1%, 8.2%)
CIE-LAB	lab(82.89, -65.77, 69.98)
CIE-LCH	lch(82.89, 96.04, 133.22°)
OKLab	oklab(83.08% -0.1811 0.1563)
OKLCH	oklch(83.08% 0.239 139.2)
XYZ	xyz(35.6147, 61.9529, 13.8219)
Luminance	0.6196 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EA38 #BC38EA

analogous

#BFEA38 #66EA38 #38EA63

triadic

#66EA38 #3866EA #EA3866

tetradic

#66EA38 #38BFEA #BC38EA #EA6338

square

#66EA38 #38BFEA #BC38EA #EA6338

split-complementary

#66EA38 #6338EA #EA38BF

monochromatic

#339810 #46CF16 #66EA38 #91F06F #BBF6A7

Accessibility & contrast

On white

1.57

#66EA38 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.39

#66EA38 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EA38

13.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EA38	#FFFFFF	#000000	##000000
##66EA38	1.00	1.57	13.39	13.39
#FFFFFF	1.57	1.00	21.00	21.00
#000000	13.39	21.00	1.00	1.00
##000000	13.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F1D505

Deuteranopia (green-blind)

#E0CA4C

Tritanopia (blue-blind)

#58E2C9

Achromatopsia (no color)

#CECECE

Design tokens & code

CSS

--color: #66ea38;
/* rgb */ color: rgb(102, 234, 56);
/* oklch */ color: oklch(83.1% 0.239 139.2);

Tailwind

colors: {
  custom: {
    50: '#9ff27b',
    500: '#66ea38',
    950: '#000000',
  },
}

SCSS

$custom: #66ea38;
$custom-light: #9ff27b;
$custom-dark: #000000;

JSON

{
  "hex": "#66ea38",
  "rgb": {
    "r": 102,
    "g": 234,
    "b": 56
  },
  "hsl": {
    "h": 104.494,
    "s": 80.909,
    "l": 56.863
  },
  "oklch": {
    "l": 0.83075,
    "c": 0.23926,
    "h": 139.2
  },
  "luminance": 0.61956
}

Semantic roles & 50–950 ramp

primary

#66EA38

secondary

#7E2B9B

accent

#30F7C4

background

#FDFFFB

surface

#F7FEF2

border

#D0D6CC

text

#10170A

muted

#81857D

Preview Lab

Preview with #66EA38

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

Preview Lab → · Contrast checker → · Palette generator →