#66B82B#66B82B

#66B82B is a light, vivid yellow-green. Relative luminance 0.373; OKLCH L 70.4% C 0.188 H 135.4°. Best body text is #000000 at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#66B82B
RGB	rgb(102, 184, 43)
HSL	hsl(95, 62%, 45%)
HSV	hsv(95, 77%, 72%)
CMYK	cmyk(44.6%, 0%, 76.6%, 27.8%)
CIE-LAB	lab(67.49, -48.02, 59.26)
CIE-LCH	lch(67.49, 76.27, 129.02°)
OKLab	oklab(70.37% -0.1341 0.1321)
OKLCH	oklch(70.37% 0.188 135.4)
XYZ	xyz(23.0555, 37.2788, 8.2657)
Luminance	0.3728 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B82B #7D2BB8

analogous

#ADB82B #66B82B #2BB837

triadic

#66B82B #2B66B8 #B82B66

tetradic

#66B82B #2BADB8 #7D2BB8 #B8372B

square

#66B82B #2BADB8 #7D2BB8 #B8372B

split-complementary

#66B82B #372BB8 #B82BAD

monochromatic

#2F5514 #4B861F #66B82B #85D54B #A7E17D

Accessibility & contrast

On white

2.48

#66B82B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.46

#66B82B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B82B

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B82B	#FFFFFF	#000000	##000000
##66B82B	1.00	2.48	8.46	8.46
#FFFFFF	2.48	1.00	21.00	21.00
#000000	8.46	21.00	1.00	1.00
##000000	8.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BFA906

Deuteranopia (green-blind)

#B4A23A

Tritanopia (blue-blind)

#63B19D

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #66b82b;
/* rgb */ color: rgb(102, 184, 43);
/* oklch */ color: oklch(70.4% 0.188 135.4);

Tailwind

colors: {
  custom: {
    50: '#99ce6f',
    500: '#66b82b',
    950: '#000000',
  },
}

SCSS

$custom: #66b82b;
$custom-light: #99ce6f;
$custom-dark: #000000;

JSON

{
  "hex": "#66b82b",
  "rgb": {
    "r": 102,
    "g": 184,
    "b": 43
  },
  "hsl": {
    "h": 94.894,
    "s": 62.115,
    "l": 44.51
  },
  "oklch": {
    "l": 0.70369,
    "c": 0.18823,
    "h": 135.4
  },
  "luminance": 0.3728
}

Semantic roles & 50–950 ramp

primary

#66B82B

secondary

#A676C9

accent

#43E5A1

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0F1308

muted

#7E827B

Preview Lab

Preview with #66B82B

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

Preview Lab → · Contrast checker → · Palette generator →