#66AD2A#66AD2A

#66AD2A is a light, vivid yellow-green. Relative luminance 0.329; OKLCH L 67.6% C 0.175 H 134.2°. Best body text is #000000 at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#66AD2A
RGB	rgb(102, 173, 42)
HSL	hsl(93, 61%, 42%)
HSV	hsv(93, 76%, 68%)
CMYK	cmyk(41%, 0%, 75.7%, 32.2%)
CIE-LAB	lab(64.06, -43.59, 56.28)
CIE-LCH	lch(64.06, 71.19, 127.76°)
OKLab	oklab(67.56% -0.1222 0.1257)
OKLCH	oklch(67.56% 0.175 134.2)
XYZ	xyz(20.8406, 32.8780, 7.4380)
Luminance	0.3288 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AD2A #712AAD

analogous

#A8AD2A #66AD2A #2AAD30

triadic

#66AD2A #2A66AD #AD2A66

tetradic

#66AD2A #2AA8AD #712AAD #AD302A

square

#66AD2A #2AA8AD #712AAD #AD302A

split-complementary

#66AD2A #302AAD #AD2AA8

monochromatic

#2C4B12 #497C1E #66AD2A #84D143 #A4DD74

Accessibility & contrast

On white

2.77

#66AD2A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.58

#66AD2A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AD2A

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AD2A	#FFFFFF	#000000	##000000
##66AD2A	1.00	2.77	7.58	7.58
#FFFFFF	2.77	1.00	21.00	21.00
#000000	7.58	21.00	1.00	1.00
##000000	7.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B49F0C

Deuteranopia (green-blind)

#AA9937

Tritanopia (blue-blind)

#65A694

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #66ad2a;
/* rgb */ color: rgb(102, 173, 42);
/* oklch */ color: oklch(67.6% 0.175 134.2);

Tailwind

colors: {
  custom: {
    50: '#98c66d',
    500: '#66ad2a',
    950: '#000000',
  },
}

SCSS

$custom: #66ad2a;
$custom-light: #98c66d;
$custom-dark: #000000;

JSON

{
  "hex": "#66ad2a",
  "rgb": {
    "r": 102,
    "g": 173,
    "b": 42
  },
  "hsl": {
    "h": 92.519,
    "s": 60.93,
    "l": 42.157
  },
  "oklch": {
    "l": 0.6756,
    "c": 0.17533,
    "h": 134.2
  },
  "luminance": 0.32879
}

Semantic roles & 50–950 ramp

primary

#66AD2A

secondary

#9D6EC5

accent

#44E49B

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66AD2A

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

Preview Lab → · Contrast checker → · Palette generator →