#A66738#A66738

#A66738 is a mid, moderate orange. Relative luminance 0.181; OKLCH L 57.3% C 0.102 H 55.7°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX#A66738
RGBrgb(166, 103, 56)
HSLhsl(26, 50%, 44%)
HSVhsv(26, 66%, 65%)
CMYKcmyk(0%, 38%, 66.3%, 34.9%)
CIE-LABlab(49.61, 20.86, 36.54)
CIE-LCHlch(49.61, 42.08, 60.29°)
OKLaboklab(57.34% 0.0577 0.0844)
OKLCHoklch(57.34% 0.102 55.7)
XYZxyz(21.2915, 18.0950, 6.1120)
Luminance0.1809 (WCAG relative)
Temperaturewarm
Familyorange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A66738 #3877A6
analogous
#A63840 #A66738 #A69E38
triadic
#A66738 #38A667 #6738A6
tetradic
#A66738 #40A638 #3877A6 #9E38A6
square
#A66738 #40A638 #3877A6 #9E38A6
split-complementary
#A66738 #38A69E #3840A6
monochromatic
#4A2E19 #784B29 #A66738 #C68555 #D5A683

Accessibility & contrast

On white

4.55
#A66738 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.62
#A66738 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #A66738
4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A66738#FFFFFF#000000##000000
##A667381.004.554.624.62
#FFFFFF4.551.0021.0021.00
#0000004.6221.001.001.00
##0000004.6221.001.001.00

Color blindness preview

Protanopia (red-blind)
#796D33
Deuteranopia (green-blind)
#887C38
Tritanopia (blue-blind)
#B55A5C
Achromatopsia (no color)
#767676

Design tokens & code

CSS
--color: #a66738;
/* rgb */ color: rgb(166, 103, 56);
/* oklch */ color: oklch(57.3% 0.102 55.7);
Tailwind
colors: {
  custom: {
    50: '#c59270',
    500: '#a66738',
    950: '#000000',
  },
}
SCSS
$custom: #a66738;
$custom-light: #c59270;
$custom-dark: #000000;
JSON
{
  "hex": "#a66738",
  "rgb": {
    "r": 166,
    "g": 103,
    "b": 56
  },
  "hsl": {
    "h": 25.636,
    "s": 49.55,
    "l": 43.529
  },
  "oklch": {
    "l": 0.57335,
    "c": 0.10226,
    "h": 55.7
  },
  "luminance": 0.18093
}

Semantic roles & 50–950 ramp

primary
#A66738
secondary
#7BA2BF
accent
#9ED94F
background
#FCF9F6
surface
#F9F1EC
border
#D2CBC7
text
#130D07
muted
#827E7A

Preview Lab

Preview with #A66738

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

Preview Lab → · Contrast checker → · Palette generator →

#A66738 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva