#66E99A#66E99A

#66E99A is a very light, vivid green. Relative luminance 0.634; OKLCH L 84.1% C 0.161 H 154.3°. Best body text is #000000 at 13.69:1 contrast (WCAG AA passes).

Color values

HEX	#66E99A
RGB	rgb(102, 233, 154)
HSL	hsl(144, 75%, 66%)
HSV	hsv(144, 56%, 91%)
CMYK	cmyk(56.2%, 0%, 33.9%, 8.6%)
CIE-LAB	lab(83.67, -53.52, 27.80)
CIE-LCH	lch(83.67, 60.31, 152.55°)
OKLab	oklab(84.07% -0.1454 0.0699)
OKLCH	oklch(84.07% 0.161 154.3)
XYZ	xyz(40.4479, 63.4320, 40.6776)
Luminance	0.6344 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E99A #E966B5

analogous

#73E966 #66E99A #66E9DC

triadic

#66E99A #9A66E9 #E99A66

tetradic

#66E99A #6673E9 #E966B5 #E9DC66

square

#66E99A #6673E9 #E966B5 #E9DC66

split-complementary

#66E99A #DC66E9 #E96673

monochromatic

#1BBA5A #30E177 #66E99A #9CF1BD #D1F8E1

Accessibility & contrast

On white

1.53

#66E99A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.69

#66E99A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E99A

13.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E99A	#FFFFFF	#000000	##000000
##66E99A	1.00	1.53	13.69	13.69
#FFFFFF	1.53	1.00	21.00	21.00
#000000	13.69	21.00	1.00	1.00
##000000	13.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E9D895

Deuteranopia (green-blind)

#D7CC9F

Tritanopia (blue-blind)

#3DE7D5

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #66e99a;
/* rgb */ color: rgb(102, 233, 154);
/* oklch */ color: oklch(84.1% 0.161 154.3);

Tailwind

colors: {
  custom: {
    50: '#9cf1b8',
    500: '#66e99a',
    950: '#000000',
  },
}

SCSS

$custom: #66e99a;
$custom-light: #9cf1b8;
$custom-dark: #000000;

JSON

{
  "hex": "#66e99a",
  "rgb": {
    "r": 102,
    "g": 233,
    "b": 154
  },
  "hsl": {
    "h": 143.817,
    "s": 74.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.84068,
    "c": 0.16136,
    "h": 154.3
  },
  "luminance": 0.63436
}

Semantic roles & 50–950 ramp

primary

#66E99A

secondary

#B93A87

accent

#0E87D7

background

#FCFFFD

surface

#F5FEF8

border

#CFD6D1

text

#0F1711

muted

#808581

Preview Lab

Preview with #66E99A

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

Preview Lab → · Contrast checker → · Palette generator →