#66D657#66D657

#66D657 is a light, vivid green. Relative luminance 0.516; OKLCH L 78.3% C 0.196 H 141.4°. Best body text is #000000 at 11.32:1 contrast (WCAG AA passes).

Color values

HEX	#66D657
RGB	rgb(102, 214, 87)
HSL	hsl(113, 61%, 59%)
HSV	hsv(113, 59%, 84%)
CMYK	cmyk(52.3%, 0%, 59.3%, 16.1%)
CIE-LAB	lab(77.04, -55.97, 52.03)
CIE-LCH	lch(77.04, 76.42, 137.09°)
OKLab	oklab(78.33% -0.1529 0.1221)
OKLCH	oklch(78.33% 0.196 141.4)
XYZ	xyz(31.2449, 51.6036, 17.3290)
Luminance	0.5161 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D657 #C757D6

analogous

#A6D657 #66D657 #57D688

triadic

#66D657 #5766D6 #D65766

tetradic

#66D657 #57A6D6 #C757D6 #D68857

square

#66D657 #57A6D6 #C757D6 #D68857

split-complementary

#66D657 #8857D6 #D657A6

monochromatic

#309023 #40C12F #66D657 #93E288 #C0EEB9

Accessibility & contrast

On white

1.85

#66D657 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.32

#66D657 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D657

11.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D657	#FFFFFF	#000000	##000000
##66D657	1.00	1.85	11.32	11.32
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.32	21.00	1.00	1.00
##000000	11.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DBC449

Deuteranopia (green-blind)

#CCBA61

Tritanopia (blue-blind)

#58D0BB

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #66d657;
/* rgb */ color: rgb(102, 214, 87);
/* oklch */ color: oklch(78.3% 0.196 141.4);

Tailwind

colors: {
  custom: {
    50: '#9be38a',
    500: '#66d657',
    950: '#000000',
  },
}

SCSS

$custom: #66d657;
$custom-light: #9be38a;
$custom-dark: #000000;

JSON

{
  "hex": "#66d657",
  "rgb": {
    "r": 102,
    "g": 214,
    "b": 87
  },
  "hsl": {
    "h": 112.913,
    "s": 60.766,
    "l": 59.02
  },
  "oklch": {
    "l": 0.78331,
    "c": 0.19566,
    "h": 141.4
  },
  "luminance": 0.51606
}

Semantic roles & 50–950 ramp

primary

#66D657

secondary

#8B3C95

accent

#44E4D1

background

#FCFEFC

surface

#F5FCF4

border

#CFD5CE

text

#0F160C

muted

#80847F

Preview Lab

Preview with #66D657

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

Preview Lab → · Contrast checker → · Palette generator →