#66FC6B#66FC6B

#66FC6B is a very light, highly saturated green. Relative luminance 0.735; OKLCH L 88.0% C 0.227 H 143.9°. Best body text is #000000 at 15.70:1 contrast (WCAG AA passes).

Color values

HEX	#66FC6B
RGB	rgb(102, 252, 107)
HSL	hsl(122, 96%, 69%)
HSV	hsv(122, 60%, 99%)
CMYK	cmyk(59.5%, 0%, 57.5%, 1.2%)
CIE-LAB	lab(88.69, -67.58, 56.68)
CIE-LCH	lch(88.69, 88.20, 140.01°)
OKLab	oklab(87.99% -0.1834 0.1338)
OKLCH	oklch(87.99% 0.227 143.9)
XYZ	xyz(42.9412, 73.5031, 25.8316)
Luminance	0.7351 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66FC6B #FC66F7

analogous

#ACFC66 #66FC6B #66FCB6

triadic

#66FC6B #6B66FC #FC6B66

tetradic

#66FC6B #66ACFC #FC66F7 #FCB666

square

#66FC6B #66ACFC #FC66F7 #FCB666

split-complementary

#66FC6B #B666FC #FC66AC

monochromatic

#04E30C #2AFB31 #66FC6B #A2FDA5 #DEFEDF

Accessibility & contrast

On white

1.34

#66FC6B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.70

#66FC6B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66FC6B

15.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66FC6B	#FFFFFF	#000000	##000000
##66FC6B	1.00	1.34	15.70	15.70
#FFFFFF	1.34	1.00	21.00	21.00
#000000	15.70	21.00	1.00	1.00
##000000	15.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE75C

Deuteranopia (green-blind)

#EEDA76

Tritanopia (blue-blind)

#49F6DC

Achromatopsia (no color)

#DFDFDF

Design tokens & code

CSS

--color: #66fc6b;
/* rgb */ color: rgb(102, 252, 107);
/* oklch */ color: oklch(88.0% 0.227 143.9);

Tailwind

colors: {
  custom: {
    50: '#a0fe99',
    500: '#66fc6b',
    950: '#000000',
  },
}

SCSS

$custom: #66fc6b;
$custom-light: #a0fe99;
$custom-dark: #000000;

JSON

{
  "hex": "#66fc6b",
  "rgb": {
    "r": 102,
    "g": 252,
    "b": 107
  },
  "hsl": {
    "h": 122,
    "s": 96.154,
    "l": 69.412
  },
  "oklch": {
    "l": 0.87986,
    "c": 0.22702,
    "h": 143.9
  },
  "luminance": 0.73507
}

Semantic roles & 50–950 ramp

primary

#66FC6B

secondary

#D630D1

accent

#00DEE6

background

#FDFFFC

surface

#F7FFF5

border

#D0D7CF

text

#10180E

muted

#81867F

Preview Lab

Preview with #66FC6B

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

Preview Lab → · Contrast checker → · Palette generator →