#66B22C#66B22C

#66B22C is a light, vivid yellow-green. Relative luminance 0.348; OKLCH L 68.8% C 0.180 H 134.9°. Best body text is #000000 at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#66B22C
RGB	rgb(102, 178, 44)
HSL	hsl(94, 60%, 44%)
HSV	hsv(94, 75%, 70%)
CMYK	cmyk(42.7%, 0%, 75.3%, 30.2%)
CIE-LAB	lab(65.63, -45.53, 57.12)
CIE-LCH	lch(65.63, 73.05, 128.56°)
OKLab	oklab(68.85% -0.1273 0.1278)
OKLCH	oklch(68.85% 0.18 134.9)
XYZ	xyz(21.8540, 34.8462, 7.9568)
Luminance	0.3485 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B22C #782CB2

analogous

#A9B22C #66B22C #2CB235

triadic

#66B22C #2C66B2 #B22C66

tetradic

#66B22C #2CA9B2 #782CB2 #B2352C

square

#66B22C #2CA9B2 #782CB2 #B2352C

split-complementary

#66B22C #352CB2 #B22CA9

monochromatic

#2E5014 #4A8120 #66B22C #84D249 #A5DE7A

Accessibility & contrast

On white

2.64

#66B22C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.97

#66B22C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B22C

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B22C	#FFFFFF	#000000	##000000
##66B22C	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)

#B9A30E

Deuteranopia (green-blind)

#AF9D3A

Tritanopia (blue-blind)

#64AB98

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #66b22c;
/* rgb */ color: rgb(102, 178, 44);
/* oklch */ color: oklch(68.8% 0.180 134.9);

Tailwind

colors: {
  custom: {
    50: '#98c96f',
    500: '#66b22c',
    950: '#000000',
  },
}

SCSS

$custom: #66b22c;
$custom-light: #98c96f;
$custom-dark: #000000;

JSON

{
  "hex": "#66b22c",
  "rgb": {
    "r": 102,
    "g": 178,
    "b": 44
  },
  "hsl": {
    "h": 94.03,
    "s": 60.36,
    "l": 43.529
  },
  "oklch": {
    "l": 0.68848,
    "c": 0.18038,
    "h": 134.9
  },
  "luminance": 0.34847
}

Semantic roles & 50–950 ramp

primary

#66B22C

secondary

#A273C6

accent

#44E49F

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66B22C

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

Preview Lab → · Contrast checker → · Palette generator →