#66AA2B#66AA2B

#66AA2B is a light, vivid yellow-green. Relative luminance 0.317; OKLCH L 66.8% C 0.171 H 133.9°. Best body text is #000000 at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#66AA2B
RGB	rgb(102, 170, 43)
HSL	hsl(92, 60%, 42%)
HSV	hsv(92, 75%, 67%)
CMYK	cmyk(40%, 0%, 74.7%, 33.3%)
CIE-LAB	lab(63.13, -42.27, 55.03)
CIE-LCH	lch(63.13, 69.39, 127.53°)
OKLab	oklab(66.8% -0.1186 0.1232)
OKLCH	oklch(66.8% 0.171 133.9)
XYZ	xyz(20.2899, 31.7476, 7.3438)
Luminance	0.3175 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AA2B #6F2BAA

analogous

#A6AA2B #66AA2B #2BAA30

triadic

#66AA2B #2B66AA #AA2B66

tetradic

#66AA2B #2BA6AA #6F2BAA #AA302B

square

#66AA2B #2BA6AA #6F2BAA #AA302B

split-complementary

#66AA2B #302BAA #AA2BA6

monochromatic

#2B4812 #49791F #66AA2B #84CF43 #A4DC74

Accessibility & contrast

On white

2.86

#66AA2B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.35

#66AA2B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AA2B

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AA2B	#FFFFFF	#000000	##000000
##66AA2B	1.00	2.86	7.35	7.35
#FFFFFF	2.86	1.00	21.00	21.00
#000000	7.35	21.00	1.00	1.00
##000000	7.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B19C11

Deuteranopia (green-blind)

#A89738

Tritanopia (blue-blind)

#66A392

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #66aa2b;
/* rgb */ color: rgb(102, 170, 43);
/* oklch */ color: oklch(66.8% 0.171 133.9);

Tailwind

colors: {
  custom: {
    50: '#97c46d',
    500: '#66aa2b',
    950: '#000000',
  },
}

SCSS

$custom: #66aa2b;
$custom-light: #97c46d;
$custom-dark: #000000;

JSON

{
  "hex": "#66aa2b",
  "rgb": {
    "r": 102,
    "g": 170,
    "b": 43
  },
  "hsl": {
    "h": 92.126,
    "s": 59.624,
    "l": 41.765
  },
  "oklch": {
    "l": 0.66802,
    "c": 0.17102,
    "h": 133.9
  },
  "luminance": 0.31749
}

Semantic roles & 50–950 ramp

primary

#66AA2B

secondary

#9B6EC3

accent

#45E399

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1208

muted

#7E817B

Preview Lab

Preview with #66AA2B

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

Preview Lab → · Contrast checker → · Palette generator →