#66EF58#66EF58

#66EF58 is a very light, highly saturated green. Relative luminance 0.653; OKLCH L 84.6% C 0.226 H 141.8°. Best body text is #000000 at 14.05:1 contrast (WCAG AA passes).

Color values

HEX	#66EF58
RGB	rgb(102, 239, 88)
HSL	hsl(114, 83%, 64%)
HSV	hsv(114, 63%, 94%)
CMYK	cmyk(57.3%, 0%, 63.2%, 6.3%)
CIE-LAB	lab(84.62, -65.01, 60.13)
CIE-LCH	lch(84.62, 88.56, 137.23°)
OKLab	oklab(84.57% -0.1773 0.1395)
OKLCH	oklch(84.57% 0.226 141.8)
XYZ	xyz(38.1055, 65.2590, 19.8188)
Luminance	0.6526 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EF58 #E158EF

analogous

#B2EF58 #66EF58 #58EF96

triadic

#66EF58 #5866EF #EF5866

tetradic

#66EF58 #58B2EF #E158EF #EF9658

square

#66EF58 #58B2EF #E158EF #EF9658

split-complementary

#66EF58 #9658EF #EF58B2

monochromatic

#22BB12 #33EA20 #66EF58 #99F490 #CCFAC8

Accessibility & contrast

On white

1.49

#66EF58 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.05

#66EF58 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EF58

14.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EF58	#FFFFFF	#000000	##000000
##66EF58	1.00	1.49	14.05	14.05
#FFFFFF	1.49	1.00	21.00	21.00
#000000	14.05	21.00	1.00	1.00
##000000	14.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F4DA46

Deuteranopia (green-blind)

#E3CF65

Tritanopia (blue-blind)

#51E8CF

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #66ef58;
/* rgb */ color: rgb(102, 239, 88);
/* oklch */ color: oklch(84.6% 0.226 141.8);

Tailwind

colors: {
  custom: {
    50: '#9ef58d',
    500: '#66ef58',
    950: '#000000',
  },
}

SCSS

$custom: #66ef58;
$custom-light: #9ef58d;
$custom-dark: #000000;

JSON

{
  "hex": "#66ef58",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 88
  },
  "hsl": {
    "h": 114.437,
    "s": 82.514,
    "l": 64.118
  },
  "oklch": {
    "l": 0.84572,
    "c": 0.22563,
    "h": 141.8
  },
  "luminance": 0.65262
}

Semantic roles & 50–950 ramp

primary

#66EF58

secondary

#AD32BA

accent

#07DFCB

background

#FDFFFC

surface

#F7FFF4

border

#D0D7CE

text

#10170D

muted

#81857F

Preview Lab

Preview with #66EF58

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

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