#66FB6D#66FB6D

#66FB6D is a very light, highly saturated green. Relative luminance 0.729; OKLCH L 87.8% C 0.224 H 144.1°. Best body text is #000000 at 15.58:1 contrast (WCAG AA passes).

Color values

HEX	#66FB6D
RGB	rgb(102, 251, 109)
HSL	hsl(123, 95%, 69%)
HSV	hsv(123, 59%, 98%)
CMYK	cmyk(59.4%, 0%, 56.6%, 1.6%)
CIE-LAB	lab(88.41, -66.99, 55.48)
CIE-LCH	lch(88.41, 86.98, 140.37°)
OKLab	oklab(87.76% -0.1817 0.1314)
OKLCH	oklch(87.76% 0.224 144.1)
XYZ	xyz(42.7345, 72.9192, 26.2878)
Luminance	0.7292 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66FB6D #FB66F4

analogous

#AAFB66 #66FB6D #66FBB8

triadic

#66FB6D #6D66FB #FB6D66

tetradic

#66FB6D #66AAFB #FB66F4 #FBB866

square

#66FB6D #66AAFB #FB66F4 #FBB866

split-complementary

#66FB6D #B866FB #FB66AA

monochromatic

#06E110 #2AF934 #66FB6D #A2FDA6 #DDFEDF

Accessibility & contrast

On white

1.35

#66FB6D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.58

#66FB6D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66FB6D

15.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66FB6D	#FFFFFF	#000000	##000000
##66FB6D	1.00	1.35	15.58	15.58
#FFFFFF	1.35	1.00	21.00	21.00
#000000	15.58	21.00	1.00	1.00
##000000	15.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE65F

Deuteranopia (green-blind)

#EDD978

Tritanopia (blue-blind)

#48F5DC

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #66fb6d;
/* rgb */ color: rgb(102, 251, 109);
/* oklch */ color: oklch(87.8% 0.224 144.1);

Tailwind

colors: {
  custom: {
    50: '#9ffe9b',
    500: '#66fb6d',
    950: '#000000',
  },
}

SCSS

$custom: #66fb6d;
$custom-light: #9ffe9b;
$custom-dark: #000000;

JSON

{
  "hex": "#66fb6d",
  "rgb": {
    "r": 102,
    "g": 251,
    "b": 109
  },
  "hsl": {
    "h": 122.819,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.87764,
    "c": 0.22423,
    "h": 144.1
  },
  "luminance": 0.72923
}

Semantic roles & 50–950 ramp

primary

#66FB6D

secondary

#D530CD

accent

#00DBE6

background

#FDFFFC

surface

#F7FFF5

border

#D0D7CF

text

#10180E

muted

#81867F

Preview Lab

Preview with #66FB6D

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

Preview Lab → · Contrast checker → · Palette generator →