#B4401F#B4401F

#B4401F is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.0% C 0.157 H 36.1°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#B4401F
RGB	rgb(180, 64, 31)
HSL	hsl(13, 71%, 41%)
HSV	hsv(13, 83%, 71%)
CMYK	cmyk(0%, 64.4%, 82.8%, 29.4%)
CIE-LAB	lab(43.47, 45.50, 43.53)
CIE-LCH	lch(43.47, 62.96, 43.73°)
OKLab	oklab(52.99% 0.1272 0.0928)
OKLCH	oklch(52.99% 0.157 36.1)
XYZ	xyz(20.9055, 13.4721, 2.7956)
Luminance	0.1347 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4401F #1F93B4

analogous

#B41F48 #B4401F #B48B1F

triadic

#B4401F #1FB440 #401FB4

tetradic

#B4401F #48B41F #1F93B4 #8B1FB4

square

#B4401F #48B41F #1F93B4 #8B1FB4

split-complementary

#B4401F #1FB48B #1F48B4

monochromatic

#4C1B0D #802D16 #B4401F #DC5934 #E58468

Accessibility & contrast

On white

5.69

#B4401F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#B4401F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4401F

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4401F	#FFFFFF	#000000	##FFFFFF
##B4401F	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#61561A

Deuteranopia (green-blind)

#7E701A

Tritanopia (blue-blind)

#C61F3A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b4401f;
/* rgb */ color: rgb(180, 64, 31);
/* oklch */ color: oklch(53.0% 0.157 36.1);

Tailwind

colors: {
  custom: {
    50: '#d37a5e',
    500: '#b4401f',
    950: '#000000',
  },
}

SCSS

$custom: #b4401f;
$custom-light: #d37a5e;
$custom-dark: #000000;

JSON

{
  "hex": "#b4401f",
  "rgb": {
    "r": 180,
    "g": 64,
    "b": 31
  },
  "hsl": {
    "h": 13.289,
    "s": 70.616,
    "l": 41.373
  },
  "oklch": {
    "l": 0.5299,
    "c": 0.1574,
    "h": 36.1
  },
  "luminance": 0.13469
}

Semantic roles & 50–950 ramp

primary

#B4401F

secondary

#64B4CB

accent

#C6ED3A

background

#FEF7F5

surface

#FCEEE9

border

#D5C9C5

text

#160A04

muted

#847C79

Preview Lab

Preview with #B4401F

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

Preview Lab → · Contrast checker → · Palette generator →