#A66B33#A66B33

#A66B33 is a mid, moderate orange. Relative luminance 0.189; OKLCH L 58.0% C 0.104 H 61.7°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#A66B33
RGB	rgb(166, 107, 51)
HSL	hsl(29, 53%, 43%)
HSV	hsv(29, 69%, 65%)
CMYK	cmyk(0%, 35.5%, 69.3%, 34.9%)
CIE-LAB	lab(50.53, 18.29, 40.17)
CIE-LCH	lch(50.53, 44.13, 65.52°)
OKLab	oklab(58.03% 0.0492 0.0914)
OKLCH	oklch(58.03% 0.104 61.7)
XYZ	xyz(21.5827, 18.8634, 5.6357)
Luminance	0.1886 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A66B33 #336EA6

analogous

#A63335 #A66B33 #A6A433

triadic

#A66B33 #33A66B #6B33A6

tetradic

#A66B33 #35A633 #336EA6 #A433A6

square

#A66B33 #35A633 #336EA6 #A433A6

split-complementary

#A66B33 #33A6A4 #3335A6

monochromatic

#482F16 #774D25 #A66B33 #C9894E #D7A97C

Accessibility & contrast

On white

4.40

#A66B33 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#A66B33 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #A66B33

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A66B33	#FFFFFF	#000000	##000000
##A66B33	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D702D

Deuteranopia (green-blind)

#8B7E34

Tritanopia (blue-blind)

#B55E5F

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #a66b33;
/* rgb */ color: rgb(166, 107, 51);
/* oklch */ color: oklch(58.0% 0.104 61.7);

Tailwind

colors: {
  custom: {
    50: '#c5956d',
    500: '#a66b33',
    950: '#000000',
  },
}

SCSS

$custom: #a66b33;
$custom-light: #c5956d;
$custom-dark: #000000;

JSON

{
  "hex": "#a66b33",
  "rgb": {
    "r": 166,
    "g": 107,
    "b": 51
  },
  "hsl": {
    "h": 29.217,
    "s": 52.995,
    "l": 42.549
  },
  "oklch": {
    "l": 0.58026,
    "c": 0.10382,
    "h": 61.7
  },
  "luminance": 0.18861
}

Semantic roles & 50–950 ramp

primary

#A66B33

secondary

#759BC0

accent

#96DC4B

background

#FCF9F6

surface

#F9F1EC

border

#D2CBC7

text

#130D07

muted

#827E7A

Preview Lab

Preview with #A66B33

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

Preview Lab → · Contrast checker → · Palette generator →