#66CF5A#66CF5A

#66CF5A is a light, vivid green. Relative luminance 0.482; OKLCH L 76.6% C 0.184 H 141.7°. Best body text is #000000 at 10.64:1 contrast (WCAG AA passes).

Color values

HEX	#66CF5A
RGB	rgb(102, 207, 90)
HSL	hsl(114, 55%, 58%)
HSV	hsv(114, 57%, 81%)
CMYK	cmyk(50.7%, 0%, 56.5%, 18.8%)
CIE-LAB	lab(74.94, -52.94, 48.24)
CIE-LCH	lch(74.94, 71.63, 137.66°)
OKLab	oklab(76.61% -0.1445 0.1142)
OKLCH	oklch(76.61% 0.184 141.7)
XYZ	xyz(29.6364, 48.1863, 17.4101)
Luminance	0.4819 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CF5A #C35ACF

analogous

#A0CF5A #66CF5A #5ACF88

triadic

#66CF5A #5A66CF #CF5A66

tetradic

#66CF5A #5AA0CF #C35ACF #CF885A

square

#66CF5A #5AA0CF #C35ACF #CF885A

split-complementary

#66CF5A #885ACF #CF5AA0

monochromatic

#318727 #42B735 #66CF5A #92DD89 #BEEBB9

Accessibility & contrast

On white

1.97

#66CF5A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.64

#66CF5A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CF5A

10.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CF5A	#FFFFFF	#000000	##000000
##66CF5A	1.00	1.97	10.64	10.64
#FFFFFF	1.97	1.00	21.00	21.00
#000000	10.64	21.00	1.00	1.00
##000000	10.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4BE4E

Deuteranopia (green-blind)

#C6B563

Tritanopia (blue-blind)

#59C9B5

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #66cf5a;
/* rgb */ color: rgb(102, 207, 90);
/* oklch */ color: oklch(76.6% 0.184 141.7);

Tailwind

colors: {
  custom: {
    50: '#9ade8c',
    500: '#66cf5a',
    950: '#000000',
  },
}

SCSS

$custom: #66cf5a;
$custom-light: #9ade8c;
$custom-dark: #000000;

JSON

{
  "hex": "#66cf5a",
  "rgb": {
    "r": 102,
    "g": 207,
    "b": 90
  },
  "hsl": {
    "h": 113.846,
    "s": 54.93,
    "l": 58.235
  },
  "oklch": {
    "l": 0.76614,
    "c": 0.18417,
    "h": 141.7
  },
  "luminance": 0.48189
}

Semantic roles & 50–950 ramp

primary

#66CF5A

secondary

#D5ABDA

accent

#4ADECF

background

#F9FDF8

surface

#F2FBF0

border

#CCD4CB

text

#0F150C

muted

#7E837D

Preview Lab

Preview with #66CF5A

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

Preview Lab → · Contrast checker → · Palette generator →