#A03B33#A03B33

#A03B33 is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.3% C 0.136 H 27.6°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#A03B33
RGB	rgb(160, 59, 51)
HSL	hsl(4, 52%, 41%)
HSV	hsv(4, 68%, 63%)
CMYK	cmyk(0%, 63.1%, 68.1%, 37.3%)
CIE-LAB	lab(39.31, 41.40, 27.01)
CIE-LCH	lch(39.31, 49.43, 33.13°)
OKLab	oklab(49.27% 0.1204 0.0631)
OKLCH	oklch(49.27% 0.136 27.6)
XYZ	xyz(16.6604, 10.8428, 4.3469)
Luminance	0.1084 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A03B33 #3398A0

analogous

#A03362 #A03B33 #A07233

triadic

#A03B33 #33A03B #3B33A0

tetradic

#A03B33 #62A033 #3398A0 #7233A0

square

#A03B33 #62A033 #3398A0 #7233A0

split-complementary

#A03B33 #33A072 #3362A0

monochromatic

#431915 #722A24 #A03B33 #C6544B #D48079

Accessibility & contrast

On white

6.63

#A03B33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#A03B33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A03B33

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A03B33	#FFFFFF	#000000	##FFFFFF
##A03B33	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564F32

Deuteranopia (green-blind)

#6F6530

Tritanopia (blue-blind)

#B0243A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a03b33;
/* rgb */ color: rgb(160, 59, 51);
/* oklch */ color: oklch(49.3% 0.136 27.6);

Tailwind

colors: {
  custom: {
    50: '#c3766b',
    500: '#a03b33',
    950: '#000000',
  },
}

SCSS

$custom: #a03b33;
$custom-light: #c3766b;
$custom-dark: #000000;

JSON

{
  "hex": "#a03b33",
  "rgb": {
    "r": 160,
    "g": 59,
    "b": 51
  },
  "hsl": {
    "h": 4.404,
    "s": 51.659,
    "l": 41.373
  },
  "oklch": {
    "l": 0.49269,
    "c": 0.13596,
    "h": 27.6
  },
  "luminance": 0.10841
}

Semantic roles & 50–950 ramp

primary

#A03B33

secondary

#72B7BD

accent

#D1DB4D

background

#FCF7F6

surface

#F9EDEB

border

#D2C8C6

text

#140906

muted

#827B7A

Preview Lab

Preview with #A03B33

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

Preview Lab → · Contrast checker → · Palette generator →