#66EC8E#66EC8E

#66EC8E is a very light, vivid green. Relative luminance 0.648; OKLCH L 84.6% C 0.176 H 150.7°. Best body text is #000000 at 13.95:1 contrast (WCAG AA passes).

Color values

HEX	#66EC8E
RGB	rgb(102, 236, 142)
HSL	hsl(138, 78%, 66%)
HSV	hsv(138, 57%, 93%)
CMYK	cmyk(56.8%, 0%, 39.8%, 7.5%)
CIE-LAB	lab(84.36, -56.80, 34.79)
CIE-LCH	lch(84.36, 66.61, 148.51°)
OKLab	oklab(84.57% -0.1538 0.0863)
OKLCH	oklch(84.57% 0.176 150.7)
XYZ	xyz(40.3545, 64.7650, 35.9602)
Luminance	0.6477 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EC8E #EC66C4

analogous

#81EC66 #66EC8E #66ECD1

triadic

#66EC8E #8E66EC #EC8E66

tetradic

#66EC8E #6681EC #EC66C4 #ECD166

square

#66EC8E #6681EC #EC66C4 #ECD166

split-complementary

#66EC8E #D166EC #EC6681

monochromatic

#18C04A #30E566 #66EC8E #9CF3B6 #D3FADE

Accessibility & contrast

On white

1.50

#66EC8E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.95

#66EC8E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EC8E

13.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EC8E	#FFFFFF	#000000	##000000
##66EC8E	1.00	1.50	13.95	13.95
#FFFFFF	1.50	1.00	21.00	21.00
#000000	13.95	21.00	1.00	1.00
##000000	13.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EDDA87

Deuteranopia (green-blind)

#DBCE94

Tritanopia (blue-blind)

#42E8D5

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #66ec8e;
/* rgb */ color: rgb(102, 236, 142);
/* oklch */ color: oklch(84.6% 0.176 150.7);

Tailwind

colors: {
  custom: {
    50: '#9cf3b0',
    500: '#66ec8e',
    950: '#000000',
  },
}

SCSS

$custom: #66ec8e;
$custom-light: #9cf3b0;
$custom-dark: #000000;

JSON

{
  "hex": "#66ec8e",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 142
  },
  "hsl": {
    "h": 137.91,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.84571,
    "c": 0.17635,
    "h": 150.7
  },
  "luminance": 0.64769
}

Semantic roles & 50–950 ramp

primary

#66EC8E

secondary

#BE3896

accent

#0B9CDA

background

#FCFFFD

surface

#F6FEF7

border

#D0D6D0

text

#0F1710

muted

#808581

Preview Lab

Preview with #66EC8E

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

Preview Lab → · Contrast checker → · Palette generator →