#66D658#66D658

#66D658 is a light, vivid green. Relative luminance 0.516; OKLCH L 78.3% C 0.195 H 141.5°. Best body text is #000000 at 11.32:1 contrast (WCAG AA passes).

Color values

HEX	#66D658
RGB	rgb(102, 214, 88)
HSL	hsl(113, 61%, 59%)
HSV	hsv(113, 59%, 84%)
CMYK	cmyk(52.3%, 0%, 58.9%, 16.1%)
CIE-LAB	lab(77.05, -55.86, 51.60)
CIE-LCH	lch(77.05, 76.05, 137.27°)
OKLab	oklab(78.34% -0.1525 0.1213)
OKLCH	oklch(78.34% 0.195 141.5)
XYZ	xyz(31.2860, 51.6200, 17.5456)
Luminance	0.5162 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D658 #C858D6

analogous

#A5D658 #66D658 #58D689

triadic

#66D658 #5866D6 #D65866

tetradic

#66D658 #58A5D6 #C858D6 #D68958

square

#66D658 #58A5D6 #C858D6 #D68958

split-complementary

#66D658 #8958D6 #D658A5

monochromatic

#2F9023 #40C12F #66D658 #93E289 #C0EEBA

Accessibility & contrast

On white

1.85

#66D658 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.32

#66D658 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D658

11.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D658	#FFFFFF	#000000	##000000
##66D658	1.00	1.85	11.32	11.32
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.32	21.00	1.00	1.00
##000000	11.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DBC44B

Deuteranopia (green-blind)

#CCBB62

Tritanopia (blue-blind)

#58D0BB

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #66d658;
/* rgb */ color: rgb(102, 214, 88);
/* oklch */ color: oklch(78.3% 0.195 141.5);

Tailwind

colors: {
  custom: {
    50: '#9be38b',
    500: '#66d658',
    950: '#000000',
  },
}

SCSS

$custom: #66d658;
$custom-light: #9be38b;
$custom-dark: #000000;

JSON

{
  "hex": "#66d658",
  "rgb": {
    "r": 102,
    "g": 214,
    "b": 88
  },
  "hsl": {
    "h": 113.333,
    "s": 60.577,
    "l": 59.216
  },
  "oklch": {
    "l": 0.78342,
    "c": 0.19487,
    "h": 141.5
  },
  "luminance": 0.51622
}

Semantic roles & 50–950 ramp

primary

#66D658

secondary

#8C3D96

accent

#44E4D2

background

#FCFEFC

surface

#F5FCF4

border

#CFD5CE

text

#0F160C

muted

#80847F

Preview Lab

Preview with #66D658

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

Preview Lab → · Contrast checker → · Palette generator →