#66AD41#66AD41

#66AD41 is a light, vivid yellow-green. Relative luminance 0.331; OKLCH L 67.8% C 0.160 H 136.5°. Best body text is #000000 at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#66AD41
RGB	rgb(102, 173, 65)
HSL	hsl(99, 45%, 47%)
HSV	hsv(99, 62%, 68%)
CMYK	cmyk(41%, 0%, 62.4%, 32.2%)
CIE-LAB	lab(64.24, -41.78, 47.32)
CIE-LCH	lch(64.24, 63.12, 131.44°)
OKLab	oklab(67.76% -0.1156 0.1099)
OKLCH	oklch(67.76% 0.16 136.5)
XYZ	xyz(21.3766, 33.0924, 10.2611)
Luminance	0.3309 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AD41 #8841AD

analogous

#9CAD41 #66AD41 #41AD52

triadic

#66AD41 #4166AD #AD4166

tetradic

#66AD41 #419CAD #8841AD #AD5241

square

#66AD41 #419CAD #8841AD #AD5241

split-complementary

#66AD41 #5241AD #AD419C

monochromatic

#325420 #4C8130 #66AD41 #87C566 #AAD692

Accessibility & contrast

On white

2.76

#66AD41 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.62

#66AD41 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AD41

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AD41	#FFFFFF	#000000	##000000
##66AD41	1.00	2.76	7.62	7.62
#FFFFFF	2.76	1.00	21.00	21.00
#000000	7.62	21.00	1.00	1.00
##000000	7.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B39F35

Deuteranopia (green-blind)

#A9994A

Tritanopia (blue-blind)

#63A796

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #66ad41;
/* rgb */ color: rgb(102, 173, 65);
/* oklch */ color: oklch(67.8% 0.160 136.5);

Tailwind

colors: {
  custom: {
    50: '#97c67a',
    500: '#66ad41',
    950: '#000000',
  },
}

SCSS

$custom: #66ad41;
$custom-light: #97c67a;
$custom-dark: #000000;

JSON

{
  "hex": "#66ad41",
  "rgb": {
    "r": 102,
    "g": 173,
    "b": 65
  },
  "hsl": {
    "h": 99.444,
    "s": 45.378,
    "l": 46.667
  },
  "oklch": {
    "l": 0.67758,
    "c": 0.15953,
    "h": 136.5
  },
  "luminance": 0.33094
}

Semantic roles & 50–950 ramp

primary

#66AD41

secondary

#AE88C2

accent

#53D5A8

background

#F9FCF7

surface

#F2F8EE

border

#CCD1C9

text

#0E1309

muted

#7E827B

Preview Lab

Preview with #66AD41

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

Preview Lab → · Contrast checker → · Palette generator →