#66EA99#66EA99

#66EA99 is a very light, vivid green. Relative luminance 0.640; OKLCH L 84.3% C 0.164 H 153.9°. Best body text is #000000 at 13.79:1 contrast (WCAG AA passes).

Color values

HEX	#66EA99
RGB	rgb(102, 234, 153)
HSL	hsl(143, 76%, 66%)
HSV	hsv(143, 56%, 92%)
CMYK	cmyk(56.4%, 0%, 34.6%, 8.2%)
CIE-LAB	lab(83.95, -54.10, 28.69)
CIE-LCH	lch(83.95, 61.24, 152.07°)
OKLab	oklab(84.29% -0.1469 0.0721)
OKLCH	oklch(84.29% 0.164 153.9)
XYZ	xyz(40.6489, 63.9666, 40.3355)
Luminance	0.6397 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EA99 #EA66B7

analogous

#75EA66 #66EA99 #66EADB

triadic

#66EA99 #9966EA #EA9966

tetradic

#66EA99 #6675EA #EA66B7 #EADB66

square

#66EA99 #6675EA #EA66B7 #EADB66

split-complementary

#66EA99 #DB66EA #EA6675

monochromatic

#1ABC58 #30E375 #66EA99 #9CF1BD #D2F9E1

Accessibility & contrast

On white

1.52

#66EA99 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.79

#66EA99 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EA99

13.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EA99	#FFFFFF	#000000	##000000
##66EA99	1.00	1.52	13.79	13.79
#FFFFFF	1.52	1.00	21.00	21.00
#000000	13.79	21.00	1.00	1.00
##000000	13.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EAD994

Deuteranopia (green-blind)

#D8CC9E

Tritanopia (blue-blind)

#3DE7D5

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #66ea99;
/* rgb */ color: rgb(102, 234, 153);
/* oklch */ color: oklch(84.3% 0.164 153.9);

Tailwind

colors: {
  custom: {
    50: '#9cf1b7',
    500: '#66ea99',
    950: '#000000',
  },
}

SCSS

$custom: #66ea99;
$custom-light: #9cf1b7;
$custom-dark: #000000;

JSON

{
  "hex": "#66ea99",
  "rgb": {
    "r": 102,
    "g": 234,
    "b": 153
  },
  "hsl": {
    "h": 143.182,
    "s": 75.862,
    "l": 65.882
  },
  "oklch": {
    "l": 0.84291,
    "c": 0.16363,
    "h": 153.9
  },
  "luminance": 0.6397
}

Semantic roles & 50–950 ramp

primary

#66EA99

secondary

#BB3989

accent

#0D8AD8

background

#FCFFFD

surface

#F5FEF8

border

#CFD6D1

text

#0F1711

muted

#808581

Preview Lab

Preview with #66EA99

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

Preview Lab → · Contrast checker → · Palette generator →