#66EC8F#66EC8F

#66EC8F is a very light, vivid green. Relative luminance 0.648; OKLCH L 84.6% C 0.175 H 150.9°. Best body text is #000000 at 13.96:1 contrast (WCAG AA passes).

Color values

HEX	#66EC8F
RGB	rgb(102, 236, 143)
HSL	hsl(138, 78%, 66%)
HSV	hsv(138, 57%, 93%)
CMYK	cmyk(56.8%, 0%, 39.4%, 7.5%)
CIE-LAB	lab(84.38, -56.63, 34.31)
CIE-LCH	lch(84.38, 66.22, 148.79°)
OKLab	oklab(84.59% -0.1533 0.0852)
OKLCH	oklch(84.59% 0.175 150.9)
XYZ	xyz(40.4299, 64.7951, 36.3574)
Luminance	0.6480 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EC8F #EC66C3

analogous

#80EC66 #66EC8F #66ECD2

triadic

#66EC8F #8F66EC #EC8F66

tetradic

#66EC8F #6680EC #EC66C3 #ECD266

square

#66EC8F #6680EC #EC66C3 #ECD266

split-complementary

#66EC8F #D266EC #EC6680

monochromatic

#18C04B #30E567 #66EC8F #9CF3B7 #D3FADF

Accessibility & contrast

On white

1.50

#66EC8F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.96

#66EC8F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EC8F

13.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EC8F	#FFFFFF	#000000	##000000
##66EC8F	1.00	1.50	13.96	13.96
#FFFFFF	1.50	1.00	21.00	21.00
#000000	13.96	21.00	1.00	1.00
##000000	13.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EDDA88

Deuteranopia (green-blind)

#DBCE95

Tritanopia (blue-blind)

#41E8D5

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #66ec8f;
/* rgb */ color: rgb(102, 236, 143);
/* oklch */ color: oklch(84.6% 0.175 150.9);

Tailwind

colors: {
  custom: {
    50: '#9cf3b0',
    500: '#66ec8f',
    950: '#000000',
  },
}

SCSS

$custom: #66ec8f;
$custom-light: #9cf3b0;
$custom-dark: #000000;

JSON

{
  "hex": "#66ec8f",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 143
  },
  "hsl": {
    "h": 138.358,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.84589,
    "c": 0.17544,
    "h": 150.9
  },
  "luminance": 0.64799
}

Semantic roles & 50–950 ramp

primary

#66EC8F

secondary

#BE3895

accent

#0B9BDA

background

#FCFFFD

surface

#F6FEF7

border

#D0D6D0

text

#0F1710

muted

#808581

Preview Lab

Preview with #66EC8F

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

Preview Lab → · Contrast checker → · Palette generator →