#66F599#66F599

#66F599 is a very light, vivid green. Relative luminance 0.704; OKLCH L 87.0% C 0.178 H 152.5°. Best body text is #000000 at 15.09:1 contrast (WCAG AA passes).

Color values

HEX	#66F599
RGB	rgb(102, 245, 153)
HSL	hsl(141, 88%, 68%)
HSV	hsv(141, 58%, 96%)
CMYK	cmyk(58.4%, 0%, 37.6%, 3.9%)
CIE-LAB	lab(87.20, -58.42, 33.03)
CIE-LCH	lch(87.20, 67.11, 150.51°)
OKLab	oklab(86.96% -0.1582 0.0824)
OKLCH	oklch(86.96% 0.178 152.5)
XYZ	xyz(43.8782, 70.4253, 41.4119)
Luminance	0.7043 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F599 #F566C2

analogous

#7AF566 #66F599 #66F5E1

triadic

#66F599 #9966F5 #F59966

tetradic

#66F599 #667AF5 #F566C2 #F5E166

square

#66F599 #667AF5 #F566C2 #F5E166

split-complementary

#66F599 #E166F5 #F5667A

monochromatic

#0ED354 #2DF173 #66F599 #9FF9BF #D9FDE6

Accessibility & contrast

On white

1.39

#66F599 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.09

#66F599 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F599

15.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F599	#FFFFFF	#000000	##000000
##66F599	1.00	1.39	15.09	15.09
#FFFFFF	1.39	1.00	21.00	21.00
#000000	15.09	21.00	1.00	1.00
##000000	15.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F5E393

Deuteranopia (green-blind)

#E2D59F

Tritanopia (blue-blind)

#38F2DE

Achromatopsia (no color)

#DADADA

Design tokens & code

CSS

--color: #66f599;
/* rgb */ color: rgb(102, 245, 153);
/* oklch */ color: oklch(87.0% 0.178 152.5);

Tailwind

colors: {
  custom: {
    50: '#9df9b8',
    500: '#66f599',
    950: '#000000',
  },
}

SCSS

$custom: #66f599;
$custom-light: #9df9b8;
$custom-dark: #000000;

JSON

{
  "hex": "#66f599",
  "rgb": {
    "r": 102,
    "g": 245,
    "b": 153
  },
  "hsl": {
    "h": 141.399,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.86961,
    "c": 0.17841,
    "h": 152.5
  },
  "luminance": 0.7043
}

Semantic roles & 50–950 ramp

primary

#66F599

secondary

#CE3196

accent

#0193E4

background

#FCFFFD

surface

#F6FFF8

border

#D0D7D1

text

#0F1711

muted

#808581

Preview Lab

Preview with #66F599

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

Preview Lab → · Contrast checker → · Palette generator →