#66581E#66581E

#66581E is a mid, moderate yellow. Relative luminance 0.099; OKLCH L 46.2% C 0.078 H 95.5°. Best body text is #FFFFFF at 7.05:1 contrast (WCAG AA passes).

Color values

HEX#66581E
RGBrgb(102, 88, 30)
HSLhsl(48, 55%, 26%)
HSVhsv(48, 71%, 40%)
CMYKcmyk(0%, 13.7%, 70.6%, 60%)
CIE-LABlab(37.66, -1.69, 34.53)
CIE-LCHlch(37.66, 34.57, 92.79°)
OKLaboklab(46.2% -0.0075 0.0781)
OKLCHoklch(46.2% 0.078 95.5)
XYZxyz(9.2040, 9.8984, 2.6538)
Luminance0.0990 (WCAG relative)
Temperaturewarm
Familyyellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66581E #1E2C66
analogous
#66341E #66581E #50661E
triadic
#66581E #1E6658 #581E66
tetradic
#66581E #1E6634 #1E2C66 #661E50
square
#66581E #1E6634 #1E2C66 #661E50
split-complementary
#66581E #1E5066 #341E66
monochromatic
#181407 #372F10 #66581E #95812C #C5AA3A

Accessibility & contrast

On white

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

On black

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

Best text color

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

Contrast matrix

fg \ bg##66581E#FFFFFF#000000##FFFFFF
##66581E1.007.052.987.05
#FFFFFF7.051.0021.001.00
#0000002.9821.001.0021.00
##FFFFFF7.051.0021.001.00

Color blindness preview

Protanopia (red-blind)
#615617
Deuteranopia (green-blind)
#655B21
Tritanopia (blue-blind)
#6E514C
Achromatopsia (no color)
#595959

Design tokens & code

CSS
--color: #66581e;
/* rgb */ color: rgb(102, 88, 30);
/* oklch */ color: oklch(46.2% 0.078 95.5);
Tailwind
colors: {
  custom: {
    50: '#94865d',
    500: '#66581e',
    950: '#000000',
  },
}
SCSS
$custom: #66581e;
$custom-light: #94865d;
$custom-dark: #000000;
JSON
{
  "hex": "#66581e",
  "rgb": {
    "r": 102,
    "g": 88,
    "b": 30
  },
  "hsl": {
    "h": 48.333,
    "s": 54.545,
    "l": 25.882
  },
  "oklch": {
    "l": 0.46204,
    "c": 0.07841,
    "h": 95.5
  },
  "luminance": 0.09898
}

Semantic roles & 50–950 ramp

primary
#66581E
secondary
#45569B
accent
#67DE4A
background
#F9F8F5
surface
#F2EFE9
border
#CCCAC5
text
#0D0B04
muted
#7E7C79

Preview Lab

Preview with #66581E

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

Preview Lab → · Contrast checker → · Palette generator →

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