#66B41A#66B41A

#66B41A is a light, vivid yellow-green. Relative luminance 0.355; OKLCH L 69.3% C 0.191 H 134.1°. Best body text is #000000 at 8.11:1 contrast (WCAG AA passes).

Color values

HEX#66B41A
RGBrgb(102, 180, 26)
HSLhsl(90, 75%, 40%)
HSVhsv(90, 86%, 71%)
CMYKcmyk(43.3%, 0%, 85.6%, 29.4%)
CIE-LABlab(66.17, -47.24, 62.79)
CIE-LCHlch(66.17, 78.58, 126.95°)
OKLaboklab(69.26% -0.133 0.137)
OKLCHoklch(69.26% 0.191 134.1)
XYZxyz(21.9868, 35.5406, 6.6786)
Luminance0.3554 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66B41A #681AB4
analogous
#B3B41A #66B41A #1AB41B
triadic
#66B41A #1A66B4 #B41A66
tetradic
#66B41A #1AB3B4 #681AB4 #B41B1A
square
#66B41A #1AB3B4 #681AB4 #B41B1A
split-complementary
#66B41A #1B1AB4 #B41AB3
monochromatic
#29490B #487F12 #66B41A #84E02B #A3E860

Accessibility & contrast

On white

2.59
#66B41A on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.11
#66B41A on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B41A
8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66B41A#FFFFFF#000000##000000
##66B41A1.002.598.118.11
#FFFFFF2.591.0021.0021.00
#0000008.1121.001.001.00
##0000008.1121.001.001.00

Color blindness preview

Protanopia (red-blind)
#BBA500
Deuteranopia (green-blind)
#B19F2F
Tritanopia (blue-blind)
#65AD99
Achromatopsia (no color)
#A1A1A1

Design tokens & code

CSS
--color: #66b41a;
/* rgb */ color: rgb(102, 180, 26);
/* oklch */ color: oklch(69.3% 0.191 134.1);
Tailwind
colors: {
  custom: {
    50: '#99cb68',
    500: '#66b41a',
    950: '#000000',
  },
}
SCSS
$custom: #66b41a;
$custom-light: #99cb68;
$custom-dark: #000000;
JSON
{
  "hex": "#66b41a",
  "rgb": {
    "r": 102,
    "g": 180,
    "b": 26
  },
  "hsl": {
    "h": 90.39,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.69263,
    "c": 0.19095,
    "h": 134.1
  },
  "luminance": 0.35542
}

Semantic roles & 50–950 ramp

primary
#66B41A
secondary
#965DCC
accent
#36F195
background
#F9FCF6
surface
#F2F8EB
border
#CCD1C6
text
#0F1307
muted
#7E827A

Preview Lab

Preview with #66B41A

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

Preview Lab → · Contrast checker → · Palette generator →

#66B41A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva