#66B52B#66B52B

#66B52B is a light, vivid yellow-green. Relative luminance 0.360; OKLCH L 69.6% C 0.185 H 135.1°. Best body text is #000000 at 8.21:1 contrast (WCAG AA passes).

Color values

HEX#66B52B
RGBrgb(102, 181, 43)
HSLhsl(94, 62%, 44%)
HSVhsv(94, 76%, 71%)
CMYKcmyk(43.6%, 0%, 76.2%, 29%)
CIE-LABlab(66.55, -46.82, 58.36)
CIE-LCHlch(66.55, 74.82, 128.74°)
OKLaboklab(69.6% -0.1309 0.1302)
OKLCHoklch(69.6% 0.185 135.1)
XYZxyz(22.4389, 36.0456, 8.0602)
Luminance0.3605 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66B52B #7A2BB5
analogous
#ABB52B #66B52B #2BB535
triadic
#66B52B #2B66B5 #B52B66
tetradic
#66B52B #2BABB5 #7A2BB5 #B5352B
square
#66B52B #2BABB5 #7A2BB5 #B5352B
split-complementary
#66B52B #352BB5 #B52BAB
monochromatic
#2E5214 #4A841F #66B52B #85D449 #A6E07B

Accessibility & contrast

On white

2.56
#66B52B on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.21
#66B52B on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B52B
8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66B52B#FFFFFF#000000##000000
##66B52B1.002.568.218.21
#FFFFFF2.561.0021.0021.00
#0000008.2121.001.001.00
##0000008.2121.001.001.00

Color blindness preview

Protanopia (red-blind)
#BCA609
Deuteranopia (green-blind)
#B19F3A
Tritanopia (blue-blind)
#64AE9B
Achromatopsia (no color)
#A2A2A2

Design tokens & code

CSS
--color: #66b52b;
/* rgb */ color: rgb(102, 181, 43);
/* oklch */ color: oklch(69.6% 0.185 135.1);
Tailwind
colors: {
  custom: {
    50: '#98cc6f',
    500: '#66b52b',
    950: '#000000',
  },
}
SCSS
$custom: #66b52b;
$custom-light: #98cc6f;
$custom-dark: #000000;
JSON
{
  "hex": "#66b52b",
  "rgb": {
    "r": 102,
    "g": 181,
    "b": 43
  },
  "hsl": {
    "h": 94.348,
    "s": 61.607,
    "l": 43.922
  },
  "oklch": {
    "l": 0.69605,
    "c": 0.1846,
    "h": 135.1
  },
  "luminance": 0.36047
}

Semantic roles & 50–950 ramp

primary
#66B52B
secondary
#A474C8
accent
#43E5A0
background
#F9FCF7
surface
#F2F9ED
border
#CCD2C8
text
#0E1308
muted
#7E827B

Preview Lab

Preview with #66B52B

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

Preview Lab → · Contrast checker → · Palette generator →

#66B52B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva