#66A031#66A031

#66A031 is a light, vivid yellow-green. Relative luminance 0.282; OKLCH L 64.3% C 0.154 H 133.0°. Best body text is #000000 at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#66A031
RGB	rgb(102, 160, 49)
HSL	hsl(91, 53%, 41%)
HSV	hsv(91, 69%, 63%)
CMYK	cmyk(36.2%, 0%, 69.4%, 37.3%)
CIE-LAB	lab(60.06, -37.52, 49.64)
CIE-LCH	lch(60.06, 62.23, 127.09°)
OKLab	oklab(64.3% -0.1053 0.1128)
OKLCH	oklch(64.3% 0.154 133)
XYZ	xyz(18.6044, 28.1874, 7.3656)
Luminance	0.2819 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A031 #6B31A0

analogous

#9DA031 #66A031 #31A033

triadic

#66A031 #3166A0 #A03166

tetradic

#66A031 #319DA0 #6B31A0 #A03331

square

#66A031 #319DA0 #6B31A0 #A03331

split-complementary

#66A031 #3331A0 #A0319D

monochromatic

#2A4214 #487123 #66A031 #84C747 #A4D576

Accessibility & contrast

On white

3.16

#66A031 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.64

#66A031 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #66A031

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A031	#FFFFFF	#000000	##000000
##66A031	1.00	3.16	6.64	6.64
#FFFFFF	3.16	1.00	21.00	21.00
#000000	6.64	21.00	1.00	1.00
##000000	6.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A79421

Deuteranopia (green-blind)

#9F8F3B

Tritanopia (blue-blind)

#679A8A

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #66a031;
/* rgb */ color: rgb(102, 160, 49);
/* oklch */ color: oklch(64.3% 0.154 133.0);

Tailwind

colors: {
  custom: {
    50: '#96bc6f',
    500: '#66a031',
    950: '#000000',
  },
}

SCSS

$custom: #66a031;
$custom-light: #96bc6f;
$custom-dark: #000000;

JSON

{
  "hex": "#66a031",
  "rgb": {
    "r": 102,
    "g": 160,
    "b": 49
  },
  "hsl": {
    "h": 91.351,
    "s": 53.11,
    "l": 40.98
  },
  "oklch": {
    "l": 0.64301,
    "c": 0.15431,
    "h": 133
  },
  "luminance": 0.28188
}

Semantic roles & 50–950 ramp

primary

#66A031

secondary

#9870BD

accent

#4BDD97

background

#F9FBF6

surface

#F2F6EC

border

#CCD0C7

text

#0E1208

muted

#7E817B

Preview Lab

Preview with #66A031

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

Preview Lab → · Contrast checker → · Palette generator →