#66E99B#66E99B

#66E99B is a very light, vivid green. Relative luminance 0.635; OKLCH L 84.1% C 0.160 H 154.6°. Best body text is #000000 at 13.69:1 contrast (WCAG AA passes).

Color values

HEX	#66E99B
RGB	rgb(102, 233, 155)
HSL	hsl(144, 75%, 66%)
HSV	hsv(144, 56%, 91%)
CMYK	cmyk(56.2%, 0%, 33.5%, 8.6%)
CIE-LAB	lab(83.69, -53.34, 27.31)
CIE-LCH	lch(83.69, 59.92, 152.88°)
OKLab	oklab(84.09% -0.145 0.0688)
OKLCH	oklch(84.09% 0.16 154.6)
XYZ	xyz(40.5316, 63.4654, 41.1181)
Luminance	0.6347 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E99B #E966B4

analogous

#72E966 #66E99B #66E9DD

triadic

#66E99B #9B66E9 #E99B66

tetradic

#66E99B #6672E9 #E966B4 #E9DD66

square

#66E99B #6672E9 #E966B4 #E9DD66

split-complementary

#66E99B #DD66E9 #E96672

monochromatic

#1BBA5B #30E178 #66E99B #9CF1BE #D1F8E1

Accessibility & contrast

On white

1.53

#66E99B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.69

#66E99B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E99B

13.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E99B	#FFFFFF	#000000	##000000
##66E99B	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)

#E8D896

Deuteranopia (green-blind)

#D6CCA0

Tritanopia (blue-blind)

#3CE7D5

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #66e99b;
/* rgb */ color: rgb(102, 233, 155);
/* oklch */ color: oklch(84.1% 0.160 154.6);

Tailwind

colors: {
  custom: {
    50: '#9cf1b9',
    500: '#66e99b',
    950: '#000000',
  },
}

SCSS

$custom: #66e99b;
$custom-light: #9cf1b9;
$custom-dark: #000000;

JSON

{
  "hex": "#66e99b",
  "rgb": {
    "r": 102,
    "g": 233,
    "b": 155
  },
  "hsl": {
    "h": 144.275,
    "s": 74.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.84088,
    "c": 0.16046,
    "h": 154.6
  },
  "luminance": 0.63469
}

Semantic roles & 50–950 ramp

primary

#66E99B

secondary

#B93A86

accent

#0E86D7

background

#FCFFFD

surface

#F5FEF8

border

#CFD6D1

text

#0F1711

muted

#808581

Preview Lab

Preview with #66E99B

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

Preview Lab → · Contrast checker → · Palette generator →