#66EF59#66EF59

#66EF59 is a very light, highly saturated green. Relative luminance 0.653; OKLCH L 84.6% C 0.225 H 141.9°. Best body text is #000000 at 14.06:1 contrast (WCAG AA passes).

Color values

HEX	#66EF59
RGB	rgb(102, 239, 89)
HSL	hsl(115, 82%, 64%)
HSV	hsv(115, 63%, 94%)
CMYK	cmyk(57.3%, 0%, 62.8%, 6.3%)
CIE-LAB	lab(84.63, -64.91, 59.73)
CIE-LCH	lch(84.63, 88.21, 137.38°)
OKLab	oklab(84.58% -0.177 0.1388)
OKLCH	oklch(84.58% 0.225 141.9)
XYZ	xyz(38.1472, 65.2756, 20.0384)
Luminance	0.6528 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EF59 #E259EF

analogous

#B1EF59 #66EF59 #59EF97

triadic

#66EF59 #5966EF #EF5966

tetradic

#66EF59 #59B1EF #E259EF #EF9759

square

#66EF59 #59B1EF #E259EF #EF9759

split-complementary

#66EF59 #9759EF #EF59B1

monochromatic

#21BC12 #33EA21 #66EF59 #99F491 #CDFAC9

Accessibility & contrast

On white

1.49

#66EF59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.06

#66EF59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EF59

14.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EF59	#FFFFFF	#000000	##000000
##66EF59	1.00	1.49	14.06	14.06
#FFFFFF	1.49	1.00	21.00	21.00
#000000	14.06	21.00	1.00	1.00
##000000	14.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F4DA47

Deuteranopia (green-blind)

#E3CF66

Tritanopia (blue-blind)

#51E8D0

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #66ef59;
/* rgb */ color: rgb(102, 239, 89);
/* oklch */ color: oklch(84.6% 0.225 141.9);

Tailwind

colors: {
  custom: {
    50: '#9ef58d',
    500: '#66ef59',
    950: '#000000',
  },
}

SCSS

$custom: #66ef59;
$custom-light: #9ef58d;
$custom-dark: #000000;

JSON

{
  "hex": "#66ef59",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 89
  },
  "hsl": {
    "h": 114.8,
    "s": 82.418,
    "l": 64.314
  },
  "oklch": {
    "l": 0.84582,
    "c": 0.22491,
    "h": 141.9
  },
  "luminance": 0.65279
}

Semantic roles & 50–950 ramp

primary

#66EF59

secondary

#AE32BA

accent

#07DFCC

background

#FDFFFC

surface

#F7FFF4

border

#D0D7CE

text

#10170D

muted

#81857F

Preview Lab

Preview with #66EF59

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

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