#66B22D#66B22D

#66B22D is a light, vivid yellow-green. Relative luminance 0.349; OKLCH L 68.9% C 0.180 H 135.0°. Best body text is #000000 at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#66B22D
RGB	rgb(102, 178, 45)
HSL	hsl(94, 60%, 44%)
HSV	hsv(94, 75%, 70%)
CMYK	cmyk(42.7%, 0%, 74.7%, 30.2%)
CIE-LAB	lab(65.63, -45.47, 56.78)
CIE-LCH	lch(65.63, 72.75, 128.69°)
OKLab	oklab(68.85% -0.1271 0.1272)
OKLCH	oklch(68.85% 0.18 135)
XYZ	xyz(21.8731, 34.8538, 8.0570)
Luminance	0.3486 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B22D #792DB2

analogous

#A8B22D #66B22D #2DB237

triadic

#66B22D #2D66B2 #B22D66

tetradic

#66B22D #2DA8B2 #792DB2 #B2372D

square

#66B22D #2DA8B2 #792DB2 #B2372D

split-complementary

#66B22D #372DB2 #B22DA8

monochromatic

#2E5014 #4A8121 #66B22D #84D14B #A6DE7C

Accessibility & contrast

On white

2.63

#66B22D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.97

#66B22D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B22D

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B22D	#FFFFFF	#000000	##000000
##66B22D	1.00	2.63	7.97	7.97
#FFFFFF	2.63	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)

#B9A311

Deuteranopia (green-blind)

#AF9D3A

Tritanopia (blue-blind)

#64AB99

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #66b22d;
/* rgb */ color: rgb(102, 178, 45);
/* oklch */ color: oklch(68.9% 0.180 135.0);

Tailwind

colors: {
  custom: {
    50: '#98c96f',
    500: '#66b22d',
    950: '#000000',
  },
}

SCSS

$custom: #66b22d;
$custom-light: #98c96f;
$custom-dark: #000000;

JSON

{
  "hex": "#66b22d",
  "rgb": {
    "r": 102,
    "g": 178,
    "b": 45
  },
  "hsl": {
    "h": 94.286,
    "s": 59.641,
    "l": 43.725
  },
  "oklch": {
    "l": 0.68854,
    "c": 0.17982,
    "h": 135
  },
  "luminance": 0.34855
}

Semantic roles & 50–950 ramp

primary

#66B22D

secondary

#A375C6

accent

#45E39F

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66B22D

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

Preview Lab → · Contrast checker → · Palette generator →