#A03B1B#A03B1B

#A03B1B is a mid, vivid red. Relative luminance 0.107; OKLCH L 49.0% C 0.141 H 37.3°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#A03B1B
RGB	rgb(160, 59, 27)
HSL	hsl(14, 71%, 37%)
HSV	hsv(14, 83%, 63%)
CMYK	cmyk(0%, 63.1%, 83.1%, 37.3%)
CIE-LAB	lab(39.04, 40.32, 40.08)
CIE-LCH	lch(39.04, 56.85, 44.83°)
OKLab	oklab(48.98% 0.1124 0.0857)
OKLCH	oklch(48.98% 0.141 37.3)
XYZ	xyz(16.2608, 10.6830, 2.2425)
Luminance	0.1068 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A03B1B #1B80A0

analogous

#A01B3E #A03B1B #A07E1B

triadic

#A03B1B #1BA03B #3B1BA0

tetradic

#A03B1B #3EA01B #1B80A0 #7E1BA0

square

#A03B1B #3EA01B #1B80A0 #7E1BA0

split-complementary

#A03B1B #1BA07E #1B3EA0

monochromatic

#371409 #6C2812 #A03B1B #D44E24 #E27653

Accessibility & contrast

On white

6.70

#A03B1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#A03B1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A03B1B

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A03B1B	#FFFFFF	#000000	##FFFFFF
##A03B1B	1.00	6.70	3.14	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E16

Deuteranopia (green-blind)

#716417

Tritanopia (blue-blind)

#B02035

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a03b1b;
/* rgb */ color: rgb(160, 59, 27);
/* oklch */ color: oklch(49.0% 0.141 37.3);

Tailwind

colors: {
  custom: {
    50: '#c4755a',
    500: '#a03b1b',
    950: '#000000',
  },
}

SCSS

$custom: #a03b1b;
$custom-light: #c4755a;
$custom-dark: #000000;

JSON

{
  "hex": "#a03b1b",
  "rgb": {
    "r": 160,
    "g": 59,
    "b": 27
  },
  "hsl": {
    "h": 14.436,
    "s": 71.123,
    "l": 36.667
  },
  "oklch": {
    "l": 0.48976,
    "c": 0.14133,
    "h": 37.3
  },
  "luminance": 0.10681
}

Semantic roles & 50–950 ramp

primary

#A03B1B

secondary

#52A9C5

accent

#C3EE3A

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#140904

muted

#837B79

Preview Lab

Preview with #A03B1B

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

Preview Lab → · Contrast checker → · Palette generator →