#66F38E#66F38E

#66F38E is a very light, vivid green. Relative luminance 0.689; OKLCH L 86.3% C 0.186 H 150.1°. Best body text is #000000 at 14.78:1 contrast (WCAG AA passes).

Color values

HEX	#66F38E
RGB	rgb(102, 243, 142)
HSL	hsl(137, 85%, 68%)
HSV	hsv(137, 58%, 95%)
CMYK	cmyk(58%, 0%, 41.6%, 4.7%)
CIE-LAB	lab(86.44, -59.49, 37.51)
CIE-LCH	lch(86.44, 70.33, 147.77°)
OKLab	oklab(86.28% -0.1609 0.0927)
OKLCH	oklch(86.28% 0.186 150.1)
XYZ	xyz(42.4095, 68.8750, 36.6452)
Luminance	0.6888 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F38E #F366CB

analogous

#85F366 #66F38E #66F3D4

triadic

#66F38E #8E66F3 #F38E66

tetradic

#66F38E #6685F3 #F366CB #F3D466

square

#66F38E #6685F3 #F366CB #F3D466

split-complementary

#66F38E #D466F3 #F36685

monochromatic

#10CE46 #2DEF64 #66F38E #9FF7B8 #D7FCE2

Accessibility & contrast

On white

1.42

#66F38E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.78

#66F38E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F38E

14.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F38E	#FFFFFF	#000000	##000000
##66F38E	1.00	1.42	14.78	14.78
#FFFFFF	1.42	1.00	21.00	21.00
#000000	14.78	21.00	1.00	1.00
##000000	14.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F4E087

Deuteranopia (green-blind)

#E2D395

Tritanopia (blue-blind)

#3FEFDA

Achromatopsia (no color)

#D8D8D8

Design tokens & code

CSS

--color: #66f38e;
/* rgb */ color: rgb(102, 243, 142);
/* oklch */ color: oklch(86.3% 0.186 150.1);

Tailwind

colors: {
  custom: {
    50: '#9df8b0',
    500: '#66f38e',
    950: '#000000',
  },
}

SCSS

$custom: #66f38e;
$custom-light: #9df8b0;
$custom-dark: #000000;

JSON

{
  "hex": "#66f38e",
  "rgb": {
    "r": 102,
    "g": 243,
    "b": 142
  },
  "hsl": {
    "h": 137.021,
    "s": 85.455,
    "l": 67.647
  },
  "oklch": {
    "l": 0.86279,
    "c": 0.18569,
    "h": 150.1
  },
  "luminance": 0.68879
}

Semantic roles & 50–950 ramp

primary

#66F38E

secondary

#CA339F

accent

#04A3E2

background

#FCFFFD

surface

#F6FFF7

border

#D0D7D0

text

#0F1710

muted

#808581

Preview Lab

Preview with #66F38E

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

Preview Lab → · Contrast checker → · Palette generator →