#66FB8B#66FB8B

#66FB8B is a very light, vivid green. Relative luminance 0.737; OKLCH L 88.2% C 0.199 H 148.8°. Best body text is #000000 at 15.74:1 contrast (WCAG AA passes).

Color values

HEX	#66FB8B
RGB	rgb(102, 251, 139)
HSL	hsl(135, 95%, 69%)
HSV	hsv(135, 59%, 98%)
CMYK	cmyk(59.4%, 0%, 44.6%, 1.6%)
CIE-LAB	lab(88.77, -62.96, 41.97)
CIE-LCH	lch(88.77, 75.67, 146.31°)
OKLab	oklab(88.18% -0.1701 0.1029)
OKLCH	oklch(88.18% 0.199 148.8)
XYZ	xyz(44.6337, 73.6789, 36.2904)
Luminance	0.7368 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66FB8B #FB66D6

analogous

#8CFB66 #66FB8B #66FBD5

triadic

#66FB8B #8B66FB #FB8B66

tetradic

#66FB8B #668CFB #FB66D6 #FBD566

square

#66FB8B #668CFB #FB66D6 #FBD566

split-complementary

#66FB8B #D566FB #FB668C

monochromatic

#06E13C #2AF95E #66FB8B #A2FDB8 #DDFEE5

Accessibility & contrast

On white

1.33

#66FB8B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.74

#66FB8B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66FB8B

15.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66FB8B	#FFFFFF	#000000	##000000
##66FB8B	1.00	1.33	15.74	15.74
#FFFFFF	1.33	1.00	21.00	21.00
#000000	15.74	21.00	1.00	1.00
##000000	15.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FDE782

Deuteranopia (green-blind)

#EADA93

Tritanopia (blue-blind)

#3DF6E0

Achromatopsia (no color)

#DFDFDF

Design tokens & code

CSS

--color: #66fb8b;
/* rgb */ color: rgb(102, 251, 139);
/* oklch */ color: oklch(88.2% 0.199 148.8);

Tailwind

colors: {
  custom: {
    50: '#9efeae',
    500: '#66fb8b',
    950: '#000000',
  },
}

SCSS

$custom: #66fb8b;
$custom-light: #9efeae;
$custom-dark: #000000;

JSON

{
  "hex": "#66fb8b",
  "rgb": {
    "r": 102,
    "g": 251,
    "b": 139
  },
  "hsl": {
    "h": 134.899,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.88179,
    "c": 0.19885,
    "h": 148.8
  },
  "luminance": 0.73683
}

Semantic roles & 50–950 ramp

primary

#66FB8B

secondary

#D530AC

accent

#00ADE6

background

#FDFFFD

surface

#F7FFF7

border

#D0D7D0

text

#101810

muted

#818681

Preview Lab

Preview with #66FB8B

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

Preview Lab → · Contrast checker → · Palette generator →