#B7403B#B7403B

#B7403B is a mid, vivid red. Relative luminance 0.141; OKLCH L 53.8% C 0.155 H 26.1°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#B7403B
RGB	rgb(183, 64, 59)
HSL	hsl(2, 51%, 47%)
HSV	hsv(2, 68%, 72%)
CMYK	cmyk(0%, 65%, 67.8%, 28.2%)
CIE-LAB	lab(44.31, 47.76, 29.24)
CIE-LCH	lch(44.31, 56.00, 31.48°)
OKLab	oklab(53.82% 0.1393 0.0683)
OKLCH	oklch(53.82% 0.155 26.1)
XYZ	xyz(22.1535, 14.0529, 5.6828)
Luminance	0.1405 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B7403B #3BB2B7

analogous

#B73B74 #B7403B #B77E3B

triadic

#B7403B #3BB740 #403BB7

tetradic

#B7403B #74B73B #3BB2B7 #7E3BB7

square

#B7403B #74B73B #3BB2B7 #7E3BB7

split-complementary

#B7403B #3BB77E #3B74B7

monochromatic

#5A201D #89302C #B7403B #CD6763 #DC9491

Accessibility & contrast

On white

5.51

#B7403B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#B7403B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B7403B

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B7403B	#FFFFFF	#000000	##FFFFFF
##B7403B	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60593A

Deuteranopia (green-blind)

#7E7238

Tritanopia (blue-blind)

#C92340

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #b7403b;
/* rgb */ color: rgb(183, 64, 59);
/* oklch */ color: oklch(53.8% 0.155 26.1);

Tailwind

colors: {
  custom: {
    50: '#d47b71',
    500: '#b7403b',
    950: '#000000',
  },
}

SCSS

$custom: #b7403b;
$custom-light: #d47b71;
$custom-dark: #000000;

JSON

{
  "hex": "#b7403b",
  "rgb": {
    "r": 183,
    "g": 64,
    "b": 59
  },
  "hsl": {
    "h": 2.419,
    "s": 51.24,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53824,
    "c": 0.15512,
    "h": 26.1
  },
  "luminance": 0.1405
}

Semantic roles & 50–950 ramp

primary

#B7403B

secondary

#87C4C6

accent

#D5DB4D

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #B7403B

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

Preview Lab → · Contrast checker → · Palette generator →