#66B72B#66B72B

#66B72B is a light, vivid yellow-green. Relative luminance 0.369; OKLCH L 70.1% C 0.187 H 135.3°. Best body text is #000000 at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#66B72B
RGB	rgb(102, 183, 43)
HSL	hsl(95, 62%, 44%)
HSV	hsv(95, 77%, 72%)
CMYK	cmyk(44.3%, 0%, 76.5%, 28.2%)
CIE-LAB	lab(67.18, -47.62, 58.96)
CIE-LCH	lch(67.18, 75.79, 128.93°)
OKLab	oklab(70.11% -0.133 0.1315)
OKLCH	oklch(70.11% 0.187 135.3)
XYZ	xyz(22.8485, 36.8648, 8.1967)
Luminance	0.3687 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B72B #7C2BB7

analogous

#ACB72B #66B72B #2BB736

triadic

#66B72B #2B66B7 #B72B66

tetradic

#66B72B #2BACB7 #7C2BB7 #B7362B

square

#66B72B #2BACB7 #7C2BB7 #B7362B

split-complementary

#66B72B #362BB7 #B72BAC

monochromatic

#2F5414 #4A851F #66B72B #85D54B #A6E07C

Accessibility & contrast

On white

2.51

#66B72B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.37

#66B72B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B72B

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B72B	#FFFFFF	#000000	##000000
##66B72B	1.00	2.51	8.37	8.37
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.37	21.00	1.00	1.00
##000000	8.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BEA807

Deuteranopia (green-blind)

#B3A13A

Tritanopia (blue-blind)

#64B09D

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #66b72b;
/* rgb */ color: rgb(102, 183, 43);
/* oklch */ color: oklch(70.1% 0.187 135.3);

Tailwind

colors: {
  custom: {
    50: '#99cd6f',
    500: '#66b72b',
    950: '#000000',
  },
}

SCSS

$custom: #66b72b;
$custom-light: #99cd6f;
$custom-dark: #000000;

JSON

{
  "hex": "#66b72b",
  "rgb": {
    "r": 102,
    "g": 183,
    "b": 43
  },
  "hsl": {
    "h": 94.714,
    "s": 61.947,
    "l": 44.314
  },
  "oklch": {
    "l": 0.70114,
    "c": 0.18703,
    "h": 135.3
  },
  "luminance": 0.36866
}

Semantic roles & 50–950 ramp

primary

#66B72B

secondary

#A575C9

accent

#43E5A1

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66B72B

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

Preview Lab → · Contrast checker → · Palette generator →