#66F39B#66F39B

#66F39B is a very light, vivid green. Relative luminance 0.693; OKLCH L 86.5% C 0.174 H 153.2°. Best body text is #000000 at 14.86:1 contrast (WCAG AA passes).

Color values

HEX	#66F39B
RGB	rgb(102, 243, 155)
HSL	hsl(143, 85%, 68%)
HSV	hsv(143, 58%, 95%)
CMYK	cmyk(58%, 0%, 36.2%, 4.7%)
CIE-LAB	lab(86.65, -57.29, 31.29)
CIE-LCH	lch(86.65, 65.28, 151.36°)
OKLab	oklab(86.51% -0.1553 0.0783)
OKLCH	oklch(86.51% 0.174 153.2)
XYZ	xyz(43.4430, 69.2884, 42.0886)
Luminance	0.6929 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F39B #F366BE

analogous

#77F366 #66F39B #66F3E1

triadic

#66F39B #9B66F3 #F39B66

tetradic

#66F39B #6677F3 #F366BE #F3E166

square

#66F39B #6677F3 #F366BE #F3E166

split-complementary

#66F39B #E166F3 #F36677

monochromatic

#10CE58 #2DEF76 #66F39B #9FF7C0 #D7FCE5

Accessibility & contrast

On white

1.41

#66F39B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.86

#66F39B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F39B

14.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F39B	#FFFFFF	#000000	##000000
##66F39B	1.00	1.41	14.86	14.86
#FFFFFF	1.41	1.00	21.00	21.00
#000000	14.86	21.00	1.00	1.00
##000000	14.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F3E195

Deuteranopia (green-blind)

#E0D4A1

Tritanopia (blue-blind)

#38F0DD

Achromatopsia (no color)

#D9D9D9

Design tokens & code

CSS

--color: #66f39b;
/* rgb */ color: rgb(102, 243, 155);
/* oklch */ color: oklch(86.5% 0.174 153.2);

Tailwind

colors: {
  custom: {
    50: '#9df8b9',
    500: '#66f39b',
    950: '#000000',
  },
}

SCSS

$custom: #66f39b;
$custom-light: #9df8b9;
$custom-dark: #000000;

JSON

{
  "hex": "#66f39b",
  "rgb": {
    "r": 102,
    "g": 243,
    "b": 155
  },
  "hsl": {
    "h": 142.553,
    "s": 85.455,
    "l": 67.647
  },
  "oklch": {
    "l": 0.86514,
    "c": 0.17394,
    "h": 153.2
  },
  "luminance": 0.69293
}

Semantic roles & 50–950 ramp

primary

#66F39B

secondary

#CA3391

accent

#048EE2

background

#FCFFFD

surface

#F6FFF8

border

#D0D7D1

text

#0F1711

muted

#808581

Preview Lab

Preview with #66F39B

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

Preview Lab → · Contrast checker → · Palette generator →