#66EC8A#66EC8A

#66EC8A is a very light, vivid green. Relative luminance 0.647; OKLCH L 84.5% C 0.180 H 149.7°. Best body text is #000000 at 13.93:1 contrast (WCAG AA passes).

Color values

HEX	#66EC8A
RGB	rgb(102, 236, 138)
HSL	hsl(136, 78%, 66%)
HSV	hsv(136, 57%, 93%)
CMYK	cmyk(56.8%, 0%, 41.5%, 7.5%)
CIE-LAB	lab(84.30, -57.45, 36.71)
CIE-LCH	lch(84.30, 68.18, 147.43°)
OKLab	oklab(84.5% -0.1555 0.0907)
OKLCH	oklch(84.5% 0.18 149.7)
XYZ	xyz(40.0595, 64.6470, 34.4069)
Luminance	0.6465 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EC8A #EC66C8

analogous

#85EC66 #66EC8A #66ECCD

triadic

#66EC8A #8A66EC #EC8A66

tetradic

#66EC8A #6685EC #EC66C8 #ECCD66

square

#66EC8A #6685EC #EC66C8 #ECCD66

split-complementary

#66EC8A #CD66EC #EC6685

monochromatic

#18C045 #30E560 #66EC8A #9CF3B4 #D3FADD

Accessibility & contrast

On white

1.51

#66EC8A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.93

#66EC8A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EC8A

13.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EC8A	#FFFFFF	#000000	##000000
##66EC8A	1.00	1.51	13.93	13.93
#FFFFFF	1.51	1.00	21.00	21.00
#000000	13.93	21.00	1.00	1.00
##000000	13.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EEDA83

Deuteranopia (green-blind)

#DCCD90

Tritanopia (blue-blind)

#44E8D4

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #66ec8a;
/* rgb */ color: rgb(102, 236, 138);
/* oklch */ color: oklch(84.5% 0.180 149.7);

Tailwind

colors: {
  custom: {
    50: '#9cf3ad',
    500: '#66ec8a',
    950: '#000000',
  },
}

SCSS

$custom: #66ec8a;
$custom-light: #9cf3ad;
$custom-dark: #000000;

JSON

{
  "hex": "#66ec8a",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 138
  },
  "hsl": {
    "h": 136.119,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.84502,
    "c": 0.18001,
    "h": 149.7
  },
  "luminance": 0.64651
}

Semantic roles & 50–950 ramp

primary

#66EC8A

secondary

#BE389A

accent

#0BA3DA

background

#FCFFFD

surface

#F6FEF7

border

#D0D6D0

text

#0F1710

muted

#808581

Preview Lab

Preview with #66EC8A

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

Preview Lab → · Contrast checker → · Palette generator →