#66BA2A#66BA2A

#66BA2A is a light, vivid yellow-green. Relative luminance 0.381; OKLCH L 70.9% C 0.191 H 135.6°. Best body text is #000000 at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#66BA2A
RGB	rgb(102, 186, 42)
HSL	hsl(95, 63%, 45%)
HSV	hsv(95, 77%, 73%)
CMYK	cmyk(45.2%, 0%, 77.4%, 27.1%)
CIE-LAB	lab(68.10, -48.88, 60.17)
CIE-LCH	lch(68.10, 77.52, 129.09°)
OKLab	oklab(70.87% -0.1365 0.1338)
OKLCH	oklch(70.87% 0.191 135.6)
XYZ	xyz(23.4557, 38.1083, 8.3097)
Luminance	0.3811 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BA2A #7E2ABA

analogous

#AEBA2A #66BA2A #2ABA36

triadic

#66BA2A #2A66BA #BA2A66

tetradic

#66BA2A #2AAEBA #7E2ABA #BA362A

square

#66BA2A #2AAEBA #7E2ABA #BA362A

split-complementary

#66BA2A #362ABA #BA2AAE

monochromatic

#2F5613 #4B881F #66BA2A #85D64B #A7E27D

Accessibility & contrast

On white

2.44

#66BA2A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.62

#66BA2A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BA2A

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BA2A	#FFFFFF	#000000	##000000
##66BA2A	1.00	2.44	8.62	8.62
#FFFFFF	2.44	1.00	21.00	21.00
#000000	8.62	21.00	1.00	1.00
##000000	8.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1AA01

Deuteranopia (green-blind)

#B6A33A

Tritanopia (blue-blind)

#63B39F

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #66ba2a;
/* rgb */ color: rgb(102, 186, 42);
/* oklch */ color: oklch(70.9% 0.191 135.6);

Tailwind

colors: {
  custom: {
    50: '#99cf6f',
    500: '#66ba2a',
    950: '#000000',
  },
}

SCSS

$custom: #66ba2a;
$custom-light: #99cf6f;
$custom-dark: #000000;

JSON

{
  "hex": "#66ba2a",
  "rgb": {
    "r": 102,
    "g": 186,
    "b": 42
  },
  "hsl": {
    "h": 95,
    "s": 63.158,
    "l": 44.706
  },
  "oklch": {
    "l": 0.70872,
    "c": 0.19115,
    "h": 135.6
  },
  "luminance": 0.3811
}

Semantic roles & 50–950 ramp

primary

#66BA2A

secondary

#A776CA

accent

#42E6A2

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0F1408

muted

#7E827B

Preview Lab

Preview with #66BA2A

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

Preview Lab → · Contrast checker → · Palette generator →