#66B22A#66B22A

#66B22A is a light, vivid yellow-green. Relative luminance 0.348; OKLCH L 68.8% C 0.181 H 134.8°. Best body text is #000000 at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#66B22A
RGB	rgb(102, 178, 42)
HSL	hsl(94, 62%, 43%)
HSV	hsv(94, 76%, 70%)
CMYK	cmyk(42.7%, 0%, 76.4%, 30.2%)
CIE-LAB	lab(65.62, -45.66, 57.79)
CIE-LCH	lch(65.62, 73.65, 128.31°)
OKLab	oklab(68.83% -0.1278 0.1289)
OKLCH	oklch(68.83% 0.181 134.8)
XYZ	xyz(21.8173, 34.8315, 7.7636)
Luminance	0.3483 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B22A #762AB2

analogous

#AAB22A #66B22A #2AB232

triadic

#66B22A #2A66B2 #B22A66

tetradic

#66B22A #2AAAB2 #762AB2 #B2322A

square

#66B22A #2AAAB2 #762AB2 #B2322A

split-complementary

#66B22A #322AB2 #B22AAA

monochromatic

#2D4F13 #4A801E #66B22A #84D346 #A5DF77

Accessibility & contrast

On white

2.64

#66B22A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.97

#66B22A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B22A

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B22A	#FFFFFF	#000000	##000000
##66B22A	1.00	2.64	7.97	7.97
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.97	21.00	1.00	1.00
##000000	7.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A308

Deuteranopia (green-blind)

#AF9D38

Tritanopia (blue-blind)

#64AB98

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #66b22a;
/* rgb */ color: rgb(102, 178, 42);
/* oklch */ color: oklch(68.8% 0.181 134.8);

Tailwind

colors: {
  custom: {
    50: '#98c96e',
    500: '#66b22a',
    950: '#000000',
  },
}

SCSS

$custom: #66b22a;
$custom-light: #98c96e;
$custom-dark: #000000;

JSON

{
  "hex": "#66b22a",
  "rgb": {
    "r": 102,
    "g": 178,
    "b": 42
  },
  "hsl": {
    "h": 93.529,
    "s": 61.818,
    "l": 43.137
  },
  "oklch": {
    "l": 0.68834,
    "c": 0.18149,
    "h": 134.8
  },
  "luminance": 0.34833
}

Semantic roles & 50–950 ramp

primary

#66B22A

secondary

#A171C7

accent

#43E59D

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66B22A

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

Preview Lab → · Contrast checker → · Palette generator →