#66B52C#66B52C

#66B52C is a light, vivid yellow-green. Relative luminance 0.361; OKLCH L 69.6% C 0.184 H 135.2°. Best body text is #000000 at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#66B52C
RGB	rgb(102, 181, 44)
HSL	hsl(95, 61%, 44%)
HSV	hsv(95, 76%, 71%)
CMYK	cmyk(43.6%, 0%, 75.7%, 29%)
CIE-LAB	lab(66.56, -46.76, 58.03)
CIE-LCH	lch(66.56, 74.52, 128.86°)
OKLab	oklab(69.61% -0.1306 0.1297)
OKLCH	oklch(69.61% 0.184 135.2)
XYZ	xyz(22.4575, 36.0531, 8.1580)
Luminance	0.3605 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B52C #7B2CB5

analogous

#ABB52C #66B52C #2CB537

triadic

#66B52C #2C66B5 #B52C66

tetradic

#66B52C #2CABB5 #7B2CB5 #B5372C

square

#66B52C #2CABB5 #7B2CB5 #B5372C

split-complementary

#66B52C #372CB5 #B52CAB

monochromatic

#2F5314 #4A8420 #66B52C #85D34B #A6DF7C

Accessibility & contrast

On white

2.56

#66B52C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.21

#66B52C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B52C

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B52C	#FFFFFF	#000000	##000000
##66B52C	1.00	2.56	8.21	8.21
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.21	21.00	1.00	1.00
##000000	8.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCA60C

Deuteranopia (green-blind)

#B1A03A

Tritanopia (blue-blind)

#64AE9B

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #66b52c;
/* rgb */ color: rgb(102, 181, 44);
/* oklch */ color: oklch(69.6% 0.184 135.2);

Tailwind

colors: {
  custom: {
    50: '#98cc6f',
    500: '#66b52c',
    950: '#000000',
  },
}

SCSS

$custom: #66b52c;
$custom-light: #98cc6f;
$custom-dark: #000000;

JSON

{
  "hex": "#66b52c",
  "rgb": {
    "r": 102,
    "g": 181,
    "b": 44
  },
  "hsl": {
    "h": 94.599,
    "s": 60.889,
    "l": 44.118
  },
  "oklch": {
    "l": 0.69611,
    "c": 0.18406,
    "h": 135.2
  },
  "luminance": 0.36054
}

Semantic roles & 50–950 ramp

primary

#66B52C

secondary

#A575C8

accent

#44E4A0

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66B52C

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

Preview Lab → · Contrast checker → · Palette generator →