#66BC3D#66BC3D

#66BC3D is a light, vivid green. Relative luminance 0.391; OKLCH L 71.5% C 0.182 H 137.3°. Best body text is #000000 at 8.83:1 contrast (WCAG AA passes).

Color values

HEX	#66BC3D
RGB	rgb(102, 188, 61)
HSL	hsl(101, 51%, 49%)
HSV	hsv(101, 68%, 74%)
CMYK	cmyk(45.7%, 0%, 67.6%, 26.3%)
CIE-LAB	lab(68.84, -48.34, 54.03)
CIE-LCH	lch(68.84, 72.50, 131.82°)
OKLab	oklab(71.52% -0.1338 0.1236)
OKLCH	oklch(71.52% 0.182 137.3)
XYZ	xyz(24.3043, 39.1266, 10.6855)
Luminance	0.3913 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BC3D #933DBC

analogous

#A6BC3D #66BC3D #3DBC54

triadic

#66BC3D #3D66BC #BC3D66

tetradic

#66BC3D #3DA6BC #933DBC #BC543D

square

#66BC3D #3DA6BC #933DBC #BC543D

split-complementary

#66BC3D #543DBC #BC3DA6

monochromatic

#34601F #4D8E2E #66BC3D #89CE68 #ADDD96

Accessibility & contrast

On white

2.38

#66BC3D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.83

#66BC3D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BC3D

8.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BC3D	#FFFFFF	#000000	##000000
##66BC3D	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)

#C2AD2B

Deuteranopia (green-blind)

#B7A548

Tritanopia (blue-blind)

#61B5A2

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #66bc3d;
/* rgb */ color: rgb(102, 188, 61);
/* oklch */ color: oklch(71.5% 0.182 137.3);

Tailwind

colors: {
  custom: {
    50: '#98d179',
    500: '#66bc3d',
    950: '#000000',
  },
}

SCSS

$custom: #66bc3d;
$custom-light: #98d179;
$custom-dark: #000000;

JSON

{
  "hex": "#66bc3d",
  "rgb": {
    "r": 102,
    "g": 188,
    "b": 61
  },
  "hsl": {
    "h": 100.63,
    "s": 51.004,
    "l": 48.824
  },
  "oklch": {
    "l": 0.71521,
    "c": 0.18214,
    "h": 137.3
  },
  "luminance": 0.39128
}

Semantic roles & 50–950 ramp

primary

#66BC3D

secondary

#B58CC9

accent

#4DDAAD

background

#F9FCF7

surface

#F2F9EE

border

#CCD2C9

text

#0E1409

muted

#7E827B

Preview Lab

Preview with #66BC3D

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

Preview Lab → · Contrast checker → · Palette generator →