#66B131#66B131

#66B131 is a light, vivid yellow-green. Relative luminance 0.345; OKLCH L 68.6% C 0.176 H 135.2°. Best body text is #000000 at 7.90:1 contrast (WCAG AA passes).

Color values

HEX#66B131
RGBrgb(102, 177, 49)
HSLhsl(95, 57%, 44%)
HSVhsv(95, 72%, 69%)
CMYKcmyk(42.4%, 0%, 72.3%, 30.6%)
CIE-LABlab(65.35, -44.79, 55.06)
CIE-LCHlch(65.35, 70.98, 129.13°)
OKLaboklab(68.63% -0.125 0.1242)
OKLCHoklch(68.63% 0.176 135.2)
XYZxyz(21.7555, 34.4896, 8.4160)
Luminance0.3449 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66B131 #7C31B1
analogous
#A6B131 #66B131 #31B13C
triadic
#66B131 #3166B1 #B13166
tetradic
#66B131 #31A6B1 #7C31B1 #B13C31
square
#66B131 #31A6B1 #7C31B1 #B13C31
split-complementary
#66B131 #3C31B1 #B131A6
monochromatic
#2F5116 #4A8124 #66B131 #85CF51 #A6DC80

Accessibility & contrast

On white

2.66
#66B131 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.90
#66B131 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B131
7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66B131#FFFFFF#000000##000000
##66B1311.002.667.907.90
#FFFFFF2.661.0021.0021.00
#0000007.9021.001.001.00
##0000007.9021.001.001.00

Color blindness preview

Protanopia (red-blind)
#B8A31A
Deuteranopia (green-blind)
#AD9C3D
Tritanopia (blue-blind)
#64AA98
Achromatopsia (no color)
#9F9F9F

Design tokens & code

CSS
--color: #66b131;
/* rgb */ color: rgb(102, 177, 49);
/* oklch */ color: oklch(68.6% 0.176 135.2);
Tailwind
colors: {
  custom: {
    50: '#98c971',
    500: '#66b131',
    950: '#000000',
  },
}
SCSS
$custom: #66b131;
$custom-light: #98c971;
$custom-dark: #000000;
JSON
{
  "hex": "#66b131",
  "rgb": {
    "r": 102,
    "g": 177,
    "b": 49
  },
  "hsl": {
    "h": 95.156,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.68629,
    "c": 0.17618,
    "h": 135.2
  },
  "luminance": 0.34491
}

Semantic roles & 50–950 ramp

primary
#66B131
secondary
#A579C5
accent
#48E0A1
background
#F9FCF7
surface
#F2F8ED
border
#CCD1C8
text
#0E1308
muted
#7E827B

Preview Lab

Preview with #66B131

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

Preview Lab → · Contrast checker → · Palette generator →

#66B131 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva