#66BC3E#66BC3E

#66BC3E is a light, vivid green. Relative luminance 0.391; OKLCH L 71.5% C 0.181 H 137.4°. Best body text is #000000 at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#66BC3E
RGB	rgb(102, 188, 62)
HSL	hsl(101, 50%, 49%)
HSV	hsv(101, 67%, 74%)
CMYK	cmyk(45.7%, 0%, 67%, 26.3%)
CIE-LAB	lab(68.85, -48.26, 53.63)
CIE-LCH	lch(68.85, 72.15, 131.98°)
OKLab	oklab(71.53% -0.1335 0.1229)
OKLCH	oklch(71.53% 0.181 137.4)
XYZ	xyz(24.3315, 39.1375, 10.8287)
Luminance	0.3914 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BC3E #943EBC

analogous

#A5BC3E #66BC3E #3EBC55

triadic

#66BC3E #3E66BC #BC3E66

tetradic

#66BC3E #3EA5BC #943EBC #BC553E

square

#66BC3E #3EA5BC #943EBC #BC553E

split-complementary

#66BC3E #553EBC #BC3EA5

monochromatic

#346020 #4D8E2F #66BC3E #89CE6A #AEDD98

Accessibility & contrast

On white

2.38

#66BC3E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.83

#66BC3E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BC3E

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BC3E	#FFFFFF	#000000	##000000
##66BC3E	1.00	2.38	8.83	8.83
#FFFFFF	2.38	1.00	21.00	21.00
#000000	8.83	21.00	1.00	1.00
##000000	8.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2AD2D

Deuteranopia (green-blind)

#B6A549

Tritanopia (blue-blind)

#61B5A2

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #66bc3e;
/* rgb */ color: rgb(102, 188, 62);
/* oklch */ color: oklch(71.5% 0.181 137.4);

Tailwind

colors: {
  custom: {
    50: '#98d179',
    500: '#66bc3e',
    950: '#000000',
  },
}

SCSS

$custom: #66bc3e;
$custom-light: #98d179;
$custom-dark: #000000;

JSON

{
  "hex": "#66bc3e",
  "rgb": {
    "r": 102,
    "g": 188,
    "b": 62
  },
  "hsl": {
    "h": 100.952,
    "s": 50.4,
    "l": 49.02
  },
  "oklch": {
    "l": 0.71529,
    "c": 0.18143,
    "h": 137.4
  },
  "luminance": 0.39139
}

Semantic roles & 50–950 ramp

primary

#66BC3E

secondary

#B68DC9

accent

#4EDAAD

background

#F9FCF7

surface

#F2F9EE

border

#CCD2C9

text

#0E1409

muted

#7E827B

Preview Lab

Preview with #66BC3E

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

Preview Lab → · Contrast checker → · Palette generator →