#66E99C#66E99C

#66E99C is a very light, vivid green. Relative luminance 0.635; OKLCH L 84.1% C 0.160 H 154.9°. Best body text is #000000 at 13.70:1 contrast (WCAG AA passes).

Color values

HEX	#66E99C
RGB	rgb(102, 233, 156)
HSL	hsl(145, 75%, 66%)
HSV	hsv(145, 56%, 91%)
CMYK	cmyk(56.2%, 0%, 33%, 8.6%)
CIE-LAB	lab(83.70, -53.15, 26.82)
CIE-LCH	lch(83.70, 59.54, 153.22°)
OKLab	oklab(84.11% -0.1445 0.0676)
OKLCH	oklch(84.11% 0.16 154.9)
XYZ	xyz(40.6159, 63.4991, 41.5622)
Luminance	0.6350 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E99C #E966B3

analogous

#71E966 #66E99C #66E9DE

triadic

#66E99C #9C66E9 #E99C66

tetradic

#66E99C #6671E9 #E966B3 #E9DE66

square

#66E99C #6671E9 #E966B3 #E9DE66

split-complementary

#66E99C #DE66E9 #E96671

monochromatic

#1BBA5C #30E179 #66E99C #9CF1BF #D1F8E1

Accessibility & contrast

On white

1.53

#66E99C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.70

#66E99C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E99C

13.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E99C	#FFFFFF	#000000	##000000
##66E99C	1.00	1.53	13.70	13.70
#FFFFFF	1.53	1.00	21.00	21.00
#000000	13.70	21.00	1.00	1.00
##000000	13.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E8D897

Deuteranopia (green-blind)

#D6CCA1

Tritanopia (blue-blind)

#3CE7D5

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #66e99c;
/* rgb */ color: rgb(102, 233, 156);
/* oklch */ color: oklch(84.1% 0.160 154.9);

Tailwind

colors: {
  custom: {
    50: '#9cf1b9',
    500: '#66e99c',
    950: '#000000',
  },
}

SCSS

$custom: #66e99c;
$custom-light: #9cf1b9;
$custom-dark: #000000;

JSON

{
  "hex": "#66e99c",
  "rgb": {
    "r": 102,
    "g": 233,
    "b": 156
  },
  "hsl": {
    "h": 144.733,
    "s": 74.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.84108,
    "c": 0.15956,
    "h": 154.9
  },
  "luminance": 0.63503
}

Semantic roles & 50–950 ramp

primary

#66E99C

secondary

#B93A85

accent

#0E84D7

background

#FCFFFD

surface

#F5FEF8

border

#CFD6D1

text

#0F1711

muted

#808581

Preview Lab

Preview with #66E99C

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

Preview Lab → · Contrast checker → · Palette generator →