#66A522#66A522

#66A522 is a light, vivid yellow-green. Relative luminance 0.299; OKLCH L 65.5% C 0.170 H 132.6°. Best body text is #000000 at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#66A522
RGB	rgb(102, 165, 34)
HSL	hsl(89, 66%, 39%)
HSV	hsv(89, 79%, 65%)
CMYK	cmyk(38.2%, 0%, 79.4%, 35.3%)
CIE-LAB	lab(61.52, -40.66, 56.46)
CIE-LCH	lch(61.52, 69.58, 125.76°)
OKLab	oklab(65.47% -0.1149 0.1249)
OKLCH	oklch(65.47% 0.17 132.6)
XYZ	xyz(19.2231, 29.8497, 6.2618)
Luminance	0.2985 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A522 #6122A5

analogous

#A5A322 #66A522 #25A522

triadic

#66A522 #2266A5 #A52266

tetradic

#66A522 #22A5A3 #6122A5 #A52225

square

#66A522 #22A5A3 #6122A5 #A52225

split-complementary

#66A522 #2225A5 #A322A5

monochromatic

#27400D #477218 #66A522 #85D430 #A3DF63

Accessibility & contrast

On white

3.01

#66A522 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.97

#66A522 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #66A522

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A522	#FFFFFF	#000000	##000000
##66A522	1.00	3.01	6.97	6.97
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.97	21.00	1.00	1.00
##000000	6.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AC9800

Deuteranopia (green-blind)

#A49330

Tritanopia (blue-blind)

#679E8D

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #66a522;
/* rgb */ color: rgb(102, 165, 34);
/* oklch */ color: oklch(65.5% 0.170 132.6);

Tailwind

colors: {
  custom: {
    50: '#97c069',
    500: '#66a522',
    950: '#000000',
  },
}

SCSS

$custom: #66a522;
$custom-light: #97c069;
$custom-dark: #000000;

JSON

{
  "hex": "#66a522",
  "rgb": {
    "r": 102,
    "g": 165,
    "b": 34
  },
  "hsl": {
    "h": 88.855,
    "s": 65.829,
    "l": 39.02
  },
  "oklch": {
    "l": 0.6547,
    "c": 0.16966,
    "h": 132.6
  },
  "luminance": 0.29851
}

Semantic roles & 50–950 ramp

primary

#66A522

secondary

#8F5FC4

accent

#3FE991

background

#F9FBF6

surface

#F2F7EB

border

#CCD0C6

text

#0E1207

muted

#7E817A

Preview Lab

Preview with #66A522

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

Preview Lab → · Contrast checker → · Palette generator →