#66A533#66A533

#66A533 is a light, vivid yellow-green. Relative luminance 0.300; OKLCH L 65.6% C 0.159 H 133.9°. Best body text is #000000 at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#66A533
RGB	rgb(102, 165, 51)
HSL	hsl(93, 53%, 42%)
HSV	hsv(93, 69%, 65%)
CMYK	cmyk(38.2%, 0%, 69.1%, 35.3%)
CIE-LAB	lab(61.63, -39.56, 50.47)
CIE-LCH	lch(61.63, 64.13, 128.09°)
OKLab	oklab(65.59% -0.1106 0.1148)
OKLCH	oklch(65.59% 0.159 133.9)
XYZ	xyz(19.5318, 29.9732, 7.8876)
Luminance	0.2997 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A533 #7233A5

analogous

#9FA533 #66A533 #33A539

triadic

#66A533 #3366A5 #A53366

tetradic

#66A533 #339FA5 #7233A5 #A53933

square

#66A533 #339FA5 #7233A5 #A53933

split-complementary

#66A533 #3933A5 #A5339F

monochromatic

#2C4816 #497625 #66A533 #84C84D #A4D67C

Accessibility & contrast

On white

3.00

#66A533 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.99

#66A533 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #66A533

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A533	#FFFFFF	#000000	##000000
##66A533	1.00	3.00	6.99	6.99
#FFFFFF	3.00	1.00	21.00	21.00
#000000	6.99	21.00	1.00	1.00
##000000	6.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AB9822

Deuteranopia (green-blind)

#A3933D

Tritanopia (blue-blind)

#669F8E

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #66a533;
/* rgb */ color: rgb(102, 165, 51);
/* oklch */ color: oklch(65.6% 0.159 133.9);

Tailwind

colors: {
  custom: {
    50: '#96c071',
    500: '#66a533',
    950: '#000000',
  },
}

SCSS

$custom: #66a533;
$custom-light: #96c071;
$custom-dark: #000000;

JSON

{
  "hex": "#66a533",
  "rgb": {
    "r": 102,
    "g": 165,
    "b": 51
  },
  "hsl": {
    "h": 93.158,
    "s": 52.778,
    "l": 42.353
  },
  "oklch": {
    "l": 0.65591,
    "c": 0.15947,
    "h": 133.9
  },
  "luminance": 0.29974
}

Semantic roles & 50–950 ramp

primary

#66A533

secondary

#9E75BF

accent

#4CDC9C

background

#F9FBF7

surface

#F2F7ED

border

#CCD0C8

text

#0E1208

muted

#7E817B

Preview Lab

Preview with #66A533

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

Preview Lab → · Contrast checker → · Palette generator →