#66A620#66A620

#66A620 is a light, vivid yellow-green. Relative luminance 0.302; OKLCH L 65.7% C 0.172 H 132.6°. Best body text is #000000 at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#66A620
RGB	rgb(102, 166, 32)
HSL	hsl(89, 68%, 39%)
HSV	hsv(89, 81%, 65%)
CMYK	cmyk(38.6%, 0%, 80.7%, 34.9%)
CIE-LAB	lab(61.83, -41.19, 57.35)
CIE-LCH	lch(61.83, 70.61, 125.69°)
OKLab	oklab(65.71% -0.1164 0.1264)
OKLCH	oklch(65.71% 0.172 132.6)
XYZ	xyz(19.3762, 30.2006, 6.1746)
Luminance	0.3020 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A620 #6020A6

analogous

#A6A320 #66A620 #23A620

triadic

#66A620 #2066A6 #A62066

tetradic

#66A620 #20A6A3 #6020A6 #A62023

square

#66A620 #20A6A3 #6020A6 #A62023

split-complementary

#66A620 #2023A6 #A320A6

monochromatic

#273F0C #467316 #66A620 #85D62D #A3E060

Accessibility & contrast

On white

2.98

#66A620 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.04

#66A620 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A620

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A620	#FFFFFF	#000000	##000000
##66A620	1.00	2.98	7.04	7.04
#FFFFFF	2.98	1.00	21.00	21.00
#000000	7.04	21.00	1.00	1.00
##000000	7.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AD9900

Deuteranopia (green-blind)

#A4942F

Tritanopia (blue-blind)

#679F8E

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #66a620;
/* rgb */ color: rgb(102, 166, 32);
/* oklch */ color: oklch(65.7% 0.172 132.6);

Tailwind

colors: {
  custom: {
    50: '#97c168',
    500: '#66a620',
    950: '#000000',
  },
}

SCSS

$custom: #66a620;
$custom-light: #97c168;
$custom-dark: #000000;

JSON

{
  "hex": "#66a620",
  "rgb": {
    "r": 102,
    "g": 166,
    "b": 32
  },
  "hsl": {
    "h": 88.657,
    "s": 67.677,
    "l": 38.824
  },
  "oklch": {
    "l": 0.65714,
    "c": 0.17185,
    "h": 132.6
  },
  "luminance": 0.30202
}

Semantic roles & 50–950 ramp

primary

#66A620

secondary

#8F5DC5

accent

#3DEB90

background

#F9FBF6

surface

#F2F7EB

border

#CCD0C6

text

#0E1207

muted

#7E817A

Preview Lab

Preview with #66A620

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

Preview Lab → · Contrast checker → · Palette generator →