#66A331#66A331

#66A331 is a light, vivid yellow-green. Relative luminance 0.292; OKLCH L 65.1% C 0.158 H 133.5°. Best body text is #000000 at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#66A331
RGB	rgb(102, 163, 49)
HSL	hsl(92, 54%, 42%)
HSV	hsv(92, 70%, 64%)
CMYK	cmyk(37.4%, 0%, 69.9%, 36.1%)
CIE-LAB	lab(60.99, -38.84, 50.61)
CIE-LCH	lch(60.99, 63.80, 127.50°)
OKLab	oklab(65.07% -0.1089 0.1149)
OKLCH	oklch(65.07% 0.158 133.5)
XYZ	xyz(19.1307, 29.2401, 7.5410)
Luminance	0.2924 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A331 #6E31A3

analogous

#9FA331 #66A331 #31A335

triadic

#66A331 #3166A3 #A33166

tetradic

#66A331 #319FA3 #6E31A3 #A33531

square

#66A331 #319FA3 #6E31A3 #A33531

split-complementary

#66A331 #3531A3 #A3319F

monochromatic

#2B4515 #497423 #66A331 #84C849 #A4D678

Accessibility & contrast

On white

3.07

#66A331 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.85

#66A331 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #66A331

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A331	#FFFFFF	#000000	##000000
##66A331	1.00	3.07	6.85	6.85
#FFFFFF	3.07	1.00	21.00	21.00
#000000	6.85	21.00	1.00	1.00
##000000	6.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AA9620

Deuteranopia (green-blind)

#A1913B

Tritanopia (blue-blind)

#669D8C

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #66a331;
/* rgb */ color: rgb(102, 163, 49);
/* oklch */ color: oklch(65.1% 0.158 133.5);

Tailwind

colors: {
  custom: {
    50: '#96be70',
    500: '#66a331',
    950: '#000000',
  },
}

SCSS

$custom: #66a331;
$custom-light: #96be70;
$custom-dark: #000000;

JSON

{
  "hex": "#66a331",
  "rgb": {
    "r": 102,
    "g": 163,
    "b": 49
  },
  "hsl": {
    "h": 92.105,
    "s": 53.774,
    "l": 41.569
  },
  "oklch": {
    "l": 0.65065,
    "c": 0.15825,
    "h": 133.5
  },
  "luminance": 0.29241
}

Semantic roles & 50–950 ramp

primary

#66A331

secondary

#9B71BF

accent

#4BDD99

background

#F9FBF7

surface

#F2F7ED

border

#CCD0C8

text

#0E1208

muted

#7E817B

Preview Lab

Preview with #66A331

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

Preview Lab → · Contrast checker → · Palette generator →