#A03331#A03331

#A03331 is a mid, vivid red. Relative luminance 0.101; OKLCH L 48.2% C 0.145 H 25.3°. Best body text is #FFFFFF at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#A03331
RGB	rgb(160, 51, 49)
HSL	hsl(1, 53%, 41%)
HSV	hsv(1, 69%, 63%)
CMYK	cmyk(0%, 68.1%, 69.4%, 37.3%)
CIE-LAB	lab(37.96, 44.85, 26.59)
CIE-LCH	lch(37.96, 52.14, 30.66°)
OKLab	oklab(48.24% 0.1309 0.0618)
OKLCH	oklch(48.24% 0.145 25.3)
XYZ	xyz(16.2371, 10.0653, 3.9929)
Luminance	0.1006 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A03331 #319EA0

analogous

#A03166 #A03331 #A06A31

triadic

#A03331 #31A033 #3331A0

tetradic

#A03331 #66A031 #319EA0 #6A31A0

square

#A03331 #66A031 #319EA0 #6A31A0

split-complementary

#A03331 #31A06A #3166A0

monochromatic

#421514 #712423 #A03331 #C74A47 #D57876

Accessibility & contrast

On white

6.97

#A03331 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#A03331 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A03331

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A03331	#FFFFFF	#000000	##FFFFFF
##A03331	1.00	6.97	3.01	6.97
#FFFFFF	6.97	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514A30

Deuteranopia (green-blind)

#6C622E

Tritanopia (blue-blind)

#B01634

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #a03331;
/* rgb */ color: rgb(160, 51, 49);
/* oklch */ color: oklch(48.2% 0.145 25.3);

Tailwind

colors: {
  custom: {
    50: '#c37169',
    500: '#a03331',
    950: '#000000',
  },
}

SCSS

$custom: #a03331;
$custom-light: #c37169;
$custom-dark: #000000;

JSON

{
  "hex": "#a03331",
  "rgb": {
    "r": 160,
    "g": 51,
    "b": 49
  },
  "hsl": {
    "h": 1.081,
    "s": 53.11,
    "l": 40.98
  },
  "oklch": {
    "l": 0.48242,
    "c": 0.14475,
    "h": 25.3
  },
  "luminance": 0.10063
}

Semantic roles & 50–950 ramp

primary

#A03331

secondary

#70BCBD

accent

#DADD4B

background

#FCF7F6

surface

#F9EDEB

border

#D2C8C6

text

#140806

muted

#827B7A

Preview Lab

Preview with #A03331

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

Preview Lab → · Contrast checker → · Palette generator →