#66F390#66F390

#66F390 is a very light, vivid green. Relative luminance 0.689; OKLCH L 86.3% C 0.184 H 150.5°. Best body text is #000000 at 14.79:1 contrast (WCAG AA passes).

Color values

HEX	#66F390
RGB	rgb(102, 243, 144)
HSL	hsl(138, 85%, 68%)
HSV	hsv(138, 58%, 95%)
CMYK	cmyk(58%, 0%, 40.7%, 4.7%)
CIE-LAB	lab(86.47, -59.16, 36.56)
CIE-LCH	lch(86.47, 69.55, 148.29°)
OKLab	oklab(86.31% -0.1601 0.0905)
OKLCH	oklch(86.31% 0.184 150.5)
XYZ	xyz(42.5610, 68.9356, 37.4431)
Luminance	0.6894 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F390 #F366C9

analogous

#83F366 #66F390 #66F3D6

triadic

#66F390 #9066F3 #F39066

tetradic

#66F390 #6683F3 #F366C9 #F3D666

square

#66F390 #6683F3 #F366C9 #F3D666

split-complementary

#66F390 #D666F3 #F36683

monochromatic

#10CE49 #2DEF67 #66F390 #9FF7B9 #D7FCE2

Accessibility & contrast

On white

1.42

#66F390 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.79

#66F390 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F390

14.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F390	#FFFFFF	#000000	##000000
##66F390	1.00	1.42	14.79	14.79
#FFFFFF	1.42	1.00	21.00	21.00
#000000	14.79	21.00	1.00	1.00
##000000	14.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F4E089

Deuteranopia (green-blind)

#E1D396

Tritanopia (blue-blind)

#3EEFDB

Achromatopsia (no color)

#D8D8D8

Design tokens & code

CSS

--color: #66f390;
/* rgb */ color: rgb(102, 243, 144);
/* oklch */ color: oklch(86.3% 0.184 150.5);

Tailwind

colors: {
  custom: {
    50: '#9df8b1',
    500: '#66f390',
    950: '#000000',
  },
}

SCSS

$custom: #66f390;
$custom-light: #9df8b1;
$custom-dark: #000000;

JSON

{
  "hex": "#66f390",
  "rgb": {
    "r": 102,
    "g": 243,
    "b": 144
  },
  "hsl": {
    "h": 137.872,
    "s": 85.455,
    "l": 67.647
  },
  "oklch": {
    "l": 0.86313,
    "c": 0.18388,
    "h": 150.5
  },
  "luminance": 0.6894
}

Semantic roles & 50–950 ramp

primary

#66F390

secondary

#CA339D

accent

#04A0E2

background

#FCFFFD

surface

#F6FFF8

border

#D0D7D1

text

#0F1711

muted

#808581

Preview Lab

Preview with #66F390

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

Preview Lab → · Contrast checker → · Palette generator →