#A3603B#A3603B

#A3603B is a mid, moderate orange. Relative luminance 0.165; OKLCH L 55.7% C 0.101 H 48.6°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#A3603B
RGB	rgb(163, 96, 59)
HSL	hsl(21, 47%, 44%)
HSV	hsv(21, 64%, 64%)
CMYK	cmyk(0%, 41.1%, 63.8%, 36.1%)
CIE-LAB	lab(47.59, 23.71, 32.44)
CIE-LCH	lch(47.59, 40.18, 53.84°)
OKLab	oklab(55.7% 0.0671 0.076)
OKLCH	oklch(55.7% 0.101 48.6)
XYZ	xyz(20.0781, 16.4700, 6.2585)
Luminance	0.1647 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3603B #3B7EA3

analogous

#A33B4A #A3603B #A3943B

triadic

#A3603B #3BA360 #603BA3

tetradic

#A3603B #4AA33B #3B7EA3 #943BA3

square

#A3603B #4AA33B #3B7EA3 #943BA3

split-complementary

#A3603B #3BA394 #3B4AA3

monochromatic

#492B1A #76462B #A3603B #C37E58 #D3A185

Accessibility & contrast

On white

4.89

#A3603B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#A3603B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A3603B

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3603B	#FFFFFF	#000000	##FFFFFF
##A3603B	1.00	4.89	4.29	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#736838

Deuteranopia (green-blind)

#83773B

Tritanopia (blue-blind)

#B25357

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #a3603b;
/* rgb */ color: rgb(163, 96, 59);
/* oklch */ color: oklch(55.7% 0.101 48.6);

Tailwind

colors: {
  custom: {
    50: '#c38e72',
    500: '#a3603b',
    950: '#000000',
  },
}

SCSS

$custom: #a3603b;
$custom-light: #c38e72;
$custom-dark: #000000;

JSON

{
  "hex": "#a3603b",
  "rgb": {
    "r": 163,
    "g": 96,
    "b": 59
  },
  "hsl": {
    "h": 21.346,
    "s": 46.847,
    "l": 43.529
  },
  "oklch": {
    "l": 0.55699,
    "c": 0.10136,
    "h": 48.6
  },
  "luminance": 0.16468
}

Semantic roles & 50–950 ramp

primary

#A3603B

secondary

#7DA6BD

accent

#A7D651

background

#FCF8F6

surface

#F8F0EC

border

#D1CBC7

text

#130C08

muted

#827D7B

Preview Lab

Preview with #A3603B

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

Preview Lab → · Contrast checker → · Palette generator →