#66D751#66D751

#66D751 is a light, highly saturated green. Relative luminance 0.520; OKLCH L 78.5% C 0.202 H 140.7°. Best body text is #000000 at 11.40:1 contrast (WCAG AA passes).

Color values

HEX	#66D751
RGB	rgb(102, 215, 81)
HSL	hsl(111, 63%, 58%)
HSV	hsv(111, 62%, 84%)
CMYK	cmyk(52.6%, 0%, 62.3%, 15.7%)
CIE-LAB	lab(77.29, -56.97, 54.92)
CIE-LCH	lch(77.29, 79.13, 136.05°)
OKLab	oklab(78.52% -0.1559 0.1277)
OKLCH	oklch(78.52% 0.202 140.7)
XYZ	xyz(31.2637, 52.0173, 16.1758)
Luminance	0.5202 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D751 #C251D7

analogous

#A9D751 #66D751 #51D77F

triadic

#66D751 #5166D7 #D75166

tetradic

#66D751 #51A9D7 #C251D7 #D77F51

square

#66D751 #51A9D7 #C251D7 #D77F51

split-complementary

#66D751 #7F51D7 #D751A9

monochromatic

#318D20 #43BF2C #66D751 #92E283 #BEEEB5

Accessibility & contrast

On white

1.84

#66D751 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.40

#66D751 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D751

11.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D751	#FFFFFF	#000000	##000000
##66D751	1.00	1.84	11.40	11.40
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.40	21.00	1.00	1.00
##000000	11.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DCC541

Deuteranopia (green-blind)

#CEBB5C

Tritanopia (blue-blind)

#59D1BB

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #66d751;
/* rgb */ color: rgb(102, 215, 81);
/* oklch */ color: oklch(78.5% 0.202 140.7);

Tailwind

colors: {
  custom: {
    50: '#9be487',
    500: '#66d751',
    950: '#000000',
  },
}

SCSS

$custom: #66d751;
$custom-light: #9be487;
$custom-dark: #000000;

JSON

{
  "hex": "#66d751",
  "rgb": {
    "r": 102,
    "g": 215,
    "b": 81
  },
  "hsl": {
    "h": 110.597,
    "s": 62.617,
    "l": 58.039
  },
  "oklch": {
    "l": 0.78517,
    "c": 0.20155,
    "h": 140.7
  },
  "luminance": 0.5202
}

Semantic roles & 50–950 ramp

primary

#66D751

secondary

#853993

accent

#42E6CC

background

#FCFEFC

surface

#F5FCF3

border

#CFD5CD

text

#0F160C

muted

#80847F

Preview Lab

Preview with #66D751

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

Preview Lab → · Contrast checker → · Palette generator →