#66B82A#66B82A

#66B82A is a light, vivid yellow-green. Relative luminance 0.373; OKLCH L 70.4% C 0.189 H 135.4°. Best body text is #000000 at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#66B82A
RGB	rgb(102, 184, 42)
HSL	hsl(95, 63%, 44%)
HSV	hsv(95, 77%, 72%)
CMYK	cmyk(44.6%, 0%, 77.2%, 27.8%)
CIE-LAB	lab(67.48, -48.08, 59.57)
CIE-LCH	lch(67.48, 76.56, 128.91°)
OKLab	oklab(70.36% -0.1343 0.1326)
OKLCH	oklch(70.36% 0.189 135.4)
XYZ	xyz(23.0374, 37.2715, 8.1703)
Luminance	0.3727 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B82A #7C2AB8

analogous

#ADB82A #66B82A #2AB835

triadic

#66B82A #2A66B8 #B82A66

tetradic

#66B82A #2AADB8 #7C2AB8 #B8352A

square

#66B82A #2AADB8 #7C2AB8 #B8352A

split-complementary

#66B82A #352AB8 #B82AAD

monochromatic

#2F5413 #4A861F #66B82A #85D64A #A6E17B

Accessibility & contrast

On white

2.48

#66B82A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.45

#66B82A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B82A

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B82A	#FFFFFF	#000000	##000000
##66B82A	1.00	2.48	8.45	8.45
#FFFFFF	2.48	1.00	21.00	21.00
#000000	8.45	21.00	1.00	1.00
##000000	8.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BFA903

Deuteranopia (green-blind)

#B4A239

Tritanopia (blue-blind)

#63B19D

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #66b82a;
/* rgb */ color: rgb(102, 184, 42);
/* oklch */ color: oklch(70.4% 0.189 135.4);

Tailwind

colors: {
  custom: {
    50: '#99ce6f',
    500: '#66b82a',
    950: '#000000',
  },
}

SCSS

$custom: #66b82a;
$custom-light: #99ce6f;
$custom-dark: #000000;

JSON

{
  "hex": "#66b82a",
  "rgb": {
    "r": 102,
    "g": 184,
    "b": 42
  },
  "hsl": {
    "h": 94.648,
    "s": 62.832,
    "l": 44.314
  },
  "oklch": {
    "l": 0.70363,
    "c": 0.18875,
    "h": 135.4
  },
  "luminance": 0.37273
}

Semantic roles & 50–950 ramp

primary

#66B82A

secondary

#A575C9

accent

#42E6A1

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0F1308

muted

#7E827B

Preview Lab

Preview with #66B82A

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

Preview Lab → · Contrast checker → · Palette generator →