#66EC4D#66EC4D

#66EC4D is a very light, highly saturated green. Relative luminance 0.634; OKLCH L 83.7% C 0.230 H 140.7°. Best body text is #000000 at 13.67:1 contrast (WCAG AA passes).

Color values

HEX	#66EC4D
RGB	rgb(102, 236, 77)
HSL	hsl(111, 81%, 61%)
HSV	hsv(111, 67%, 93%)
CMYK	cmyk(56.8%, 0%, 67.4%, 7.5%)
CIE-LAB	lab(83.63, -64.95, 63.43)
CIE-LCH	lch(83.63, 90.79, 135.68°)
OKLab	oklab(83.73% -0.1778 0.1453)
OKLCH	oklch(83.73% 0.23 140.7)
XYZ	xyz(36.8128, 63.3483, 17.3072)
Luminance	0.6335 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EC4D #D34DEC

analogous

#B6EC4D #66EC4D #4DEC84

triadic

#66EC4D #4D66EC #EC4D66

tetradic

#66EC4D #4DB6EC #D34DEC #EC844D

square

#66EC4D #4DB6EC #D34DEC #EC844D

split-complementary

#66EC4D #844DEC #EC4DB6

monochromatic

#2BAC12 #38E418 #66EC4D #96F284 #C5F8BC

Accessibility & contrast

On white

1.54

#66EC4D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.67

#66EC4D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EC4D

13.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EC4D	#FFFFFF	#000000	##000000
##66EC4D	1.00	1.54	13.67	13.67
#FFFFFF	1.54	1.00	21.00	21.00
#000000	13.67	21.00	1.00	1.00
##000000	13.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F2D736

Deuteranopia (green-blind)

#E1CC5C

Tritanopia (blue-blind)

#54E5CC

Achromatopsia (no color)

#D0D0D0

Design tokens & code

CSS

--color: #66ec4d;
/* rgb */ color: rgb(102, 236, 77);
/* oklch */ color: oklch(83.7% 0.230 140.7);

Tailwind

colors: {
  custom: {
    50: '#9ef386',
    500: '#66ec4d',
    950: '#000000',
  },
}

SCSS

$custom: #66ec4d;
$custom-light: #9ef386;
$custom-dark: #000000;

JSON

{
  "hex": "#66ec4d",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 77
  },
  "hsl": {
    "h": 110.566,
    "s": 80.711,
    "l": 61.373
  },
  "oklch": {
    "l": 0.83726,
    "c": 0.22958,
    "h": 140.7
  },
  "luminance": 0.63352
}

Semantic roles & 50–950 ramp

primary

#66EC4D

secondary

#9930AD

accent

#08DDBC

background

#FDFFFC

surface

#F7FEF4

border

#D0D6CE

text

#10170C

muted

#81857F

Preview Lab

Preview with #66EC4D

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

Preview Lab → · Contrast checker → · Palette generator →