#66EE5F#66EE5F

#66EE5F is a very light, highly saturated green. Relative luminance 0.648; OKLCH L 84.4% C 0.219 H 142.5°. Best body text is #000000 at 13.96:1 contrast (WCAG AA passes).

Color values

HEX	#66EE5F
RGB	rgb(102, 238, 95)
HSL	hsl(117, 81%, 65%)
HSV	hsv(117, 60%, 93%)
CMYK	cmyk(57.1%, 0%, 60.1%, 6.7%)
CIE-LAB	lab(84.38, -63.95, 56.92)
CIE-LCH	lch(84.38, 85.61, 138.32°)
OKLab	oklab(84.4% -0.1741 0.1334)
OKLCH	oklch(84.4% 0.219 142.5)
XYZ	xyz(38.1176, 64.7967, 21.3226)
Luminance	0.6480 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EE5F #E75FEE

analogous

#ADEE5F #66EE5F #5FEE9F

triadic

#66EE5F #5F66EE #EE5F66

tetradic

#66EE5F #5FADEE #E75FEE #EE9F5F

square

#66EE5F #5FADEE #E75FEE #EE9F5F

split-complementary

#66EE5F #9F5FEE #EE5FAD

monochromatic

#1DBE14 #31E828 #66EE5F #9BF496 #D0FACE

Accessibility & contrast

On white

1.50

#66EE5F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.96

#66EE5F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EE5F

13.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EE5F	#FFFFFF	#000000	##000000
##66EE5F	1.00	1.50	13.96	13.96
#FFFFFF	1.50	1.00	21.00	21.00
#000000	13.96	21.00	1.00	1.00
##000000	13.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F3DA4F

Deuteranopia (green-blind)

#E2CE6B

Tritanopia (blue-blind)

#50E7CF

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #66ee5f;
/* rgb */ color: rgb(102, 238, 95);
/* oklch */ color: oklch(84.4% 0.219 142.5);

Tailwind

colors: {
  custom: {
    50: '#9ef591',
    500: '#66ee5f',
    950: '#000000',
  },
}

SCSS

$custom: #66ee5f;
$custom-light: #9ef591;
$custom-dark: #000000;

JSON

{
  "hex": "#66ee5f",
  "rgb": {
    "r": 102,
    "g": 238,
    "b": 95
  },
  "hsl": {
    "h": 117.063,
    "s": 80.791,
    "l": 65.294
  },
  "oklch": {
    "l": 0.84396,
    "c": 0.21928,
    "h": 142.5
  },
  "luminance": 0.648
}

Semantic roles & 50–950 ramp

primary

#66EE5F

secondary

#B634BD

accent

#08DDD3

background

#FCFFFC

surface

#F6FEF4

border

#D0D6CE

text

#10170D

muted

#80857F

Preview Lab

Preview with #66EE5F

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

Preview Lab → · Contrast checker → · Palette generator →