#66B433#66B433

#66B433 is a light, vivid yellow-green. Relative luminance 0.357; OKLCH L 69.4% C 0.179 H 135.7°. Best body text is #000000 at 8.14:1 contrast (WCAG AA passes).

Color values

HEX#66B433
RGBrgb(102, 180, 51)
HSLhsl(96, 56%, 45%)
HSVhsv(96, 72%, 71%)
CMYKcmyk(43.3%, 0%, 71.7%, 29.4%)
CIE-LABlab(66.29, -45.88, 55.27)
CIE-LCHlch(66.29, 71.84, 129.69°)
OKLaboklab(69.41% -0.1278 0.1249)
OKLCHoklch(69.41% 0.179 135.7)
XYZxyz(22.3977, 35.7050, 8.8429)
Luminance0.3571 (WCAG relative)
Temperaturewarm
Familyyellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66B433 #8133B4
analogous
#A6B433 #66B433 #33B440
triadic
#66B433 #3366B4 #B43366
tetradic
#66B433 #33A6B4 #8133B4 #B44033
square
#66B433 #33A6B4 #8133B4 #B44033
split-complementary
#66B433 #4033B4 #B433A6
monochromatic
#305518 #4B8425 #66B433 #85CF55 #A8DC85

Accessibility & contrast

On white

2.58
#66B433 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.14
#66B433 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B433
8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66B433#FFFFFF#000000##000000
##66B4331.002.588.148.14
#FFFFFF2.581.0021.0021.00
#0000008.1421.001.001.00
##0000008.1421.001.001.00

Color blindness preview

Protanopia (red-blind)
#BAA51D
Deuteranopia (green-blind)
#B09F3F
Tritanopia (blue-blind)
#63AD9B
Achromatopsia (no color)
#A1A1A1

Design tokens & code

CSS
--color: #66b433;
/* rgb */ color: rgb(102, 180, 51);
/* oklch */ color: oklch(69.4% 0.179 135.7);
Tailwind
colors: {
  custom: {
    50: '#98cb73',
    500: '#66b433',
    950: '#000000',
  },
}
SCSS
$custom: #66b433;
$custom-light: #98cb73;
$custom-dark: #000000;
JSON
{
  "hex": "#66b433",
  "rgb": {
    "r": 102,
    "g": 180,
    "b": 51
  },
  "hsl": {
    "h": 96.279,
    "s": 55.844,
    "l": 45.294
  },
  "oklch": {
    "l": 0.69407,
    "c": 0.1787,
    "h": 135.7
  },
  "luminance": 0.35706
}

Semantic roles & 50–950 ramp

primary
#66B433
secondary
#A97DC6
accent
#49DFA4
background
#F9FCF7
surface
#F2F8ED
border
#CCD1C8
text
#0E1308
muted
#7E827B

Preview Lab

Preview with #66B433

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

Preview Lab → · Contrast checker → · Palette generator →

#66B433 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva