#66D243#66D243

#66D243 is a light, highly saturated green. Relative luminance 0.493; OKLCH L 77.1% C 0.205 H 139.1°. Best body text is #000000 at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#66D243
RGB	rgb(102, 210, 67)
HSL	hsl(105, 61%, 54%)
HSV	hsv(105, 68%, 82%)
CMYK	cmyk(51.4%, 0%, 68.1%, 17.6%)
CIE-LAB	lab(75.65, -56.37, 58.85)
CIE-LCH	lch(75.65, 81.49, 133.77°)
OKLab	oklab(77.13% -0.1551 0.1345)
OKLCH	oklch(77.13% 0.205 139.1)
XYZ	xyz(29.5381, 49.3210, 13.2725)
Luminance	0.4932 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D243 #AF43D2

analogous

#ADD243 #66D243 #43D268

triadic

#66D243 #4366D2 #D24366

tetradic

#66D243 #43ADD2 #AF43D2 #D26843

square

#66D243 #43ADD2 #AF43D2 #D26843

split-complementary

#66D243 #6843D2 #D243AD

monochromatic

#357D1E #4AAE2A #66D243 #8EDE74 #B6EAA6

Accessibility & contrast

On white

1.93

#66D243 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.86

#66D243 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D243

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D243	#FFFFFF	#000000	##000000
##66D243	1.00	1.93	10.86	10.86
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.86	21.00	1.00	1.00
##000000	10.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C02E

Deuteranopia (green-blind)

#CAB750

Tritanopia (blue-blind)

#5CCBB5

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #66d243;
/* rgb */ color: rgb(102, 210, 67);
/* oklch */ color: oklch(77.1% 0.205 139.1);

Tailwind

colors: {
  custom: {
    50: '#9be17e',
    500: '#66d243',
    950: '#000000',
  },
}

SCSS

$custom: #66d243;
$custom-light: #9be17e;
$custom-dark: #000000;

JSON

{
  "hex": "#66d243",
  "rgb": {
    "r": 102,
    "g": 210,
    "b": 67
  },
  "hsl": {
    "h": 105.315,
    "s": 61.373,
    "l": 54.314
  },
  "oklch": {
    "l": 0.7713,
    "c": 0.2053,
    "h": 139.1
  },
  "luminance": 0.49323
}

Semantic roles & 50–950 ramp

primary

#66D243

secondary

#C89AD7

accent

#43E4BD

background

#FAFDF8

surface

#F4FBEF

border

#CED4CA

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66D243

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

Preview Lab → · Contrast checker → · Palette generator →