#66A42A#66A42A

#66A42A is a light, vivid yellow-green. Relative luminance 0.295; OKLCH L 65.3% C 0.164 H 133.0°. Best body text is #000000 at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#66A42A
RGB	rgb(102, 164, 42)
HSL	hsl(90, 59%, 40%)
HSV	hsv(90, 74%, 64%)
CMYK	cmyk(37.8%, 0%, 74.4%, 35.7%)
CIE-LAB	lab(61.26, -39.77, 53.53)
CIE-LCH	lch(61.26, 66.69, 126.61°)
OKLab	oklab(65.27% -0.1119 0.12)
OKLCH	oklch(65.27% 0.164 133)
XYZ	xyz(19.1726, 29.5420, 6.8820)
Luminance	0.2954 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A42A #682AA4

analogous

#A3A42A #66A42A #2AA42B

triadic

#66A42A #2A66A4 #A42A66

tetradic

#66A42A #2AA3A4 #682AA4 #A42B2A

square

#66A42A #2AA3A4 #682AA4 #A42B2A

split-complementary

#66A42A #2B2AA4 #A42AA3

monochromatic

#294311 #48731E #66A42A #84CD3E #A3DA6E

Accessibility & contrast

On white

3.04

#66A42A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.91

#66A42A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #66A42A

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A42A	#FFFFFF	#000000	##000000
##66A42A	1.00	3.04	6.91	6.91
#FFFFFF	3.04	1.00	21.00	21.00
#000000	6.91	21.00	1.00	1.00
##000000	6.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AB9712

Deuteranopia (green-blind)

#A29236

Tritanopia (blue-blind)

#669D8D

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #66a42a;
/* rgb */ color: rgb(102, 164, 42);
/* oklch */ color: oklch(65.3% 0.164 133.0);

Tailwind

colors: {
  custom: {
    50: '#97bf6c',
    500: '#66a42a',
    950: '#000000',
  },
}

SCSS

$custom: #66a42a;
$custom-light: #97bf6c;
$custom-dark: #000000;

JSON

{
  "hex": "#66a42a",
  "rgb": {
    "r": 102,
    "g": 164,
    "b": 42
  },
  "hsl": {
    "h": 90.492,
    "s": 59.223,
    "l": 40.392
  },
  "oklch": {
    "l": 0.65265,
    "c": 0.16404,
    "h": 133
  },
  "luminance": 0.29543
}

Semantic roles & 50–950 ramp

primary

#66A42A

secondary

#9669C1

accent

#45E295

background

#F9FBF6

surface

#F2F7EC

border

#CCD0C7

text

#0E1207

muted

#7E817A

Preview Lab

Preview with #66A42A

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

Preview Lab → · Contrast checker → · Palette generator →