#A66537#A66537

#A66537 is a mid, moderate orange. Relative luminance 0.177; OKLCH L 57.0% C 0.104 H 54.2°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#A66537
RGB	rgb(166, 101, 55)
HSL	hsl(25, 50%, 43%)
HSV	hsv(25, 67%, 65%)
CMYK	cmyk(0%, 39.2%, 66.9%, 34.9%)
CIE-LAB	lab(49.12, 21.92, 36.51)
CIE-LCH	lch(49.12, 42.59, 59.02°)
OKLab	oklab(56.95% 0.0607 0.0842)
OKLCH	oklch(56.95% 0.104 54.2)
XYZ	xyz(21.0708, 17.6922, 5.9190)
Luminance	0.1769 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A66537 #3778A6

analogous

#A63740 #A66537 #A69C37

triadic

#A66537 #37A665 #6537A6

tetradic

#A66537 #40A637 #3778A6 #9C37A6

square

#A66537 #40A637 #3778A6 #9C37A6

split-complementary

#A66537 #37A69C #3740A6

monochromatic

#4A2D19 #784928 #A66537 #C68354 #D6A582

Accessibility & contrast

On white

4.63

#A66537 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#A66537 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #A66537

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A66537	#FFFFFF	#000000	##FFFFFF
##A66537	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#786C32

Deuteranopia (green-blind)

#877A37

Tritanopia (blue-blind)

#B5585A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #a66537;
/* rgb */ color: rgb(166, 101, 55);
/* oklch */ color: oklch(57.0% 0.104 54.2);

Tailwind

colors: {
  custom: {
    50: '#c5916f',
    500: '#a66537',
    950: '#000000',
  },
}

SCSS

$custom: #a66537;
$custom-light: #c5916f;
$custom-dark: #000000;

JSON

{
  "hex": "#a66537",
  "rgb": {
    "r": 166,
    "g": 101,
    "b": 55
  },
  "hsl": {
    "h": 24.865,
    "s": 50.226,
    "l": 43.333
  },
  "oklch": {
    "l": 0.56952,
    "c": 0.10382,
    "h": 54.2
  },
  "luminance": 0.1769
}

Semantic roles & 50–950 ramp

primary

#A66537

secondary

#7AA2BF

accent

#A0DA4E

background

#FCF8F6

surface

#F9F0EC

border

#D2CBC7

text

#140D07

muted

#827D7A

Preview Lab

Preview with #A66537

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

Preview Lab → · Contrast checker → · Palette generator →