#66B333#66B333

#66B333 is a light, vivid yellow-green. Relative luminance 0.353; OKLCH L 69.2% C 0.177 H 135.6°. Best body text is #000000 at 8.06:1 contrast (WCAG AA passes).

Color values

HEX#66B333
RGBrgb(102, 179, 51)
HSLhsl(96, 56%, 45%)
HSVhsv(96, 72%, 70%)
CMYKcmyk(43%, 0%, 71.5%, 29.8%)
CIE-LABlab(65.98, -45.47, 54.96)
CIE-LCHlch(65.98, 71.33, 129.60°)
OKLaboklab(69.15% -0.1267 0.1242)
OKLCHoklch(69.15% 0.177 135.6)
XYZxyz(22.1966, 35.3027, 8.7759)
Luminance0.3530 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66B333 #8033B3
analogous
#A6B333 #66B333 #33B340
triadic
#66B333 #3366B3 #B33366
tetradic
#66B333 #33A6B3 #8033B3 #B34033
square
#66B333 #33A6B3 #8033B3 #B34033
split-complementary
#66B333 #4033B3 #B333A6
monochromatic
#305418 #4B8325 #66B333 #85CE55 #A7DC84

Accessibility & contrast

On white

2.61
#66B333 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.06
#66B333 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B333
8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66B333#FFFFFF#000000##000000
##66B3331.002.618.068.06
#FFFFFF2.611.0021.0021.00
#0000008.0621.001.001.00
##0000008.0621.001.001.00

Color blindness preview

Protanopia (red-blind)
#B9A41D
Deuteranopia (green-blind)
#AF9E3F
Tritanopia (blue-blind)
#64AC9A
Achromatopsia (no color)
#A0A0A0

Design tokens & code

CSS
--color: #66b333;
/* rgb */ color: rgb(102, 179, 51);
/* oklch */ color: oklch(69.2% 0.177 135.6);
Tailwind
colors: {
  custom: {
    50: '#98ca73',
    500: '#66b333',
    950: '#000000',
  },
}
SCSS
$custom: #66b333;
$custom-light: #98ca73;
$custom-dark: #000000;
JSON
{
  "hex": "#66b333",
  "rgb": {
    "r": 102,
    "g": 179,
    "b": 51
  },
  "hsl": {
    "h": 96.094,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.69153,
    "c": 0.17744,
    "h": 135.6
  },
  "luminance": 0.35304
}

Semantic roles & 50–950 ramp

primary
#66B333
secondary
#A87CC6
accent
#49DFA3
background
#F9FCF7
surface
#F2F8ED
border
#CCD1C8
text
#0E1308
muted
#7E827B

Preview Lab

Preview with #66B333

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

Preview Lab → · Contrast checker → · Palette generator →

#66B333 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva