#A03531#A03531

#A03531 is a mid, vivid red. Relative luminance 0.102; OKLCH L 48.5% C 0.143 H 26.1°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#A03531
RGB	rgb(160, 53, 49)
HSL	hsl(2, 53%, 41%)
HSV	hsv(2, 69%, 63%)
CMYK	cmyk(0%, 66.9%, 69.4%, 37.3%)
CIE-LAB	lab(38.28, 43.99, 26.97)
CIE-LCH	lch(38.28, 51.60, 31.51°)
OKLab	oklab(48.48% 0.1282 0.0627)
OKLCH	oklch(48.48% 0.143 26.1)
XYZ	xyz(16.3264, 10.2439, 4.0227)
Luminance	0.1024 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A03531 #319CA0

analogous

#A03164 #A03531 #A06C31

triadic

#A03531 #31A035 #3531A0

tetradic

#A03531 #64A031 #319CA0 #6C31A0

square

#A03531 #64A031 #319CA0 #6C31A0

split-complementary

#A03531 #31A06C #3164A0

monochromatic

#421614 #712523 #A03531 #C74C47 #D57A76

Accessibility & contrast

On white

6.89

#A03531 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#A03531 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A03531

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A03531	#FFFFFF	#000000	##FFFFFF
##A03531	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524B30

Deuteranopia (green-blind)

#6D632E

Tritanopia (blue-blind)

#B01A35

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #a03531;
/* rgb */ color: rgb(160, 53, 49);
/* oklch */ color: oklch(48.5% 0.143 26.1);

Tailwind

colors: {
  custom: {
    50: '#c37269',
    500: '#a03531',
    950: '#000000',
  },
}

SCSS

$custom: #a03531;
$custom-light: #c37269;
$custom-dark: #000000;

JSON

{
  "hex": "#a03531",
  "rgb": {
    "r": 160,
    "g": 53,
    "b": 49
  },
  "hsl": {
    "h": 2.162,
    "s": 53.11,
    "l": 40.98
  },
  "oklch": {
    "l": 0.4848,
    "c": 0.14268,
    "h": 26.1
  },
  "luminance": 0.10242
}

Semantic roles & 50–950 ramp

primary

#A03531

secondary

#70BABD

accent

#D7DD4B

background

#FCF7F6

surface

#F9EDEB

border

#D2C8C6

text

#140806

muted

#827B7A

Preview Lab

Preview with #A03531

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

Preview Lab → · Contrast checker → · Palette generator →