#66B42A#66B42A

#66B42A is a light, vivid yellow-green. Relative luminance 0.356; OKLCH L 69.3% C 0.184 H 135.0°. Best body text is #000000 at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#66B42A
RGB	rgb(102, 180, 42)
HSL	hsl(94, 62%, 44%)
HSV	hsv(94, 77%, 71%)
CMYK	cmyk(43.3%, 0%, 76.7%, 29.4%)
CIE-LAB	lab(66.24, -46.47, 58.38)
CIE-LCH	lch(66.24, 74.62, 128.52°)
OKLab	oklab(69.34% -0.13 0.1301)
OKLCH	oklch(69.34% 0.184 135)
XYZ	xyz(22.2182, 35.6332, 7.8972)
Luminance	0.3563 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B42A #782AB4

analogous

#ABB42A #66B42A #2AB433

triadic

#66B42A #2A66B4 #B42A66

tetradic

#66B42A #2AABB4 #782AB4 #B4332A

square

#66B42A #2AABB4 #782AB4 #B4332A

split-complementary

#66B42A #332AB4 #B42AAB

monochromatic

#2E5113 #4A821E #66B42A #84D447 #A5E079

Accessibility & contrast

On white

2.58

#66B42A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.13

#66B42A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B42A

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B42A	#FFFFFF	#000000	##000000
##66B42A	1.00	2.58	8.13	8.13
#FFFFFF	2.58	1.00	21.00	21.00
#000000	8.13	21.00	1.00	1.00
##000000	8.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBA506

Deuteranopia (green-blind)

#B09F39

Tritanopia (blue-blind)

#64AD9A

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #66b42a;
/* rgb */ color: rgb(102, 180, 42);
/* oklch */ color: oklch(69.3% 0.184 135.0);

Tailwind

colors: {
  custom: {
    50: '#98cb6e',
    500: '#66b42a',
    950: '#000000',
  },
}

SCSS

$custom: #66b42a;
$custom-light: #98cb6e;
$custom-dark: #000000;

JSON

{
  "hex": "#66b42a",
  "rgb": {
    "r": 102,
    "g": 180,
    "b": 42
  },
  "hsl": {
    "h": 93.913,
    "s": 62.162,
    "l": 43.529
  },
  "oklch": {
    "l": 0.69344,
    "c": 0.18392,
    "h": 135
  },
  "luminance": 0.35634
}

Semantic roles & 50–950 ramp

primary

#66B42A

secondary

#A272C8

accent

#43E59F

background

#F9FCF7

surface

#F2F8ED

border

#CCD1C8

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66B42A

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

Preview Lab → · Contrast checker → · Palette generator →