#66581F#66581F

#66581F is a mid, moderate yellow. Relative luminance 0.099; OKLCH L 46.2% C 0.078 H 95.3°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX#66581F
RGBrgb(102, 88, 31)
HSLhsl(48, 53%, 26%)
HSVhsv(48, 70%, 40%)
CMYKcmyk(0%, 13.7%, 69.6%, 60%)
CIE-LABlab(37.67, -1.62, 34.05)
CIE-LCHlch(37.67, 34.09, 92.72°)
OKLaboklab(46.21% -0.0072 0.0772)
OKLCHoklch(46.21% 0.078 95.3)
XYZxyz(9.2170, 9.9036, 2.7222)
Luminance0.0990 (WCAG relative)
Temperaturewarm
Familyyellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66581F #1F2D66
analogous
#66341F #66581F #50661F
triadic
#66581F #1F6658 #581F66
tetradic
#66581F #1F6634 #1F2D66 #661F50
square
#66581F #1F6634 #1F2D66 #661F50
split-complementary
#66581F #1F5066 #341F66
monochromatic
#171407 #373011 #66581F #95802D #C4A93C

Accessibility & contrast

On white

7.05
#66581F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.98
#66581F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #66581F
7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66581F#FFFFFF#000000##FFFFFF
##66581F1.007.052.987.05
#FFFFFF7.051.0021.001.00
#0000002.9821.001.0021.00
##FFFFFF7.051.0021.001.00

Color blindness preview

Protanopia (red-blind)
#615618
Deuteranopia (green-blind)
#655B22
Tritanopia (blue-blind)
#6E514C
Achromatopsia (no color)
#595959

Design tokens & code

CSS
--color: #66581f;
/* rgb */ color: rgb(102, 88, 31);
/* oklch */ color: oklch(46.2% 0.078 95.3);
Tailwind
colors: {
  custom: {
    50: '#94865e',
    500: '#66581f',
    950: '#000000',
  },
}
SCSS
$custom: #66581f;
$custom-light: #94865e;
$custom-dark: #000000;
JSON
{
  "hex": "#66581f",
  "rgb": {
    "r": 102,
    "g": 88,
    "b": 31
  },
  "hsl": {
    "h": 48.169,
    "s": 53.383,
    "l": 26.078
  },
  "oklch": {
    "l": 0.46214,
    "c": 0.07756,
    "h": 95.3
  },
  "luminance": 0.09903
}

Semantic roles & 50–950 ramp

primary
#66581F
secondary
#46579A
accent
#68DD4B
background
#F9F8F5
surface
#F2EFE9
border
#CCCAC5
text
#0D0B04
muted
#7E7C79

Preview Lab

Preview with #66581F

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

Preview Lab → · Contrast checker → · Palette generator →

#66581F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva