#B7403D#B7403D

#B7403D is a mid, vivid red. Relative luminance 0.141; OKLCH L 53.9% C 0.155 H 25.2°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#B7403D
RGB	rgb(183, 64, 61)
HSL	hsl(1, 50%, 48%)
HSV	hsv(1, 67%, 72%)
CMYK	cmyk(0%, 65%, 66.7%, 28.2%)
CIE-LAB	lab(44.34, 47.87, 28.09)
CIE-LCH	lch(44.34, 55.50, 30.40°)
OKLab	oklab(53.86% 0.1401 0.066)
OKLCH	oklch(53.86% 0.155 25.2)
XYZ	xyz(22.2064, 14.0741, 5.9612)
Luminance	0.1407 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B7403D #3DB4B7

analogous

#B73D77 #B7403D #B77D3D

triadic

#B7403D #3DB740 #403DB7

tetradic

#B7403D #77B73D #3DB4B7 #7D3DB7

square

#B7403D #77B73D #3DB4B7 #7D3DB7

split-complementary

#B7403D #3DB77D #3D77B7

monochromatic

#5B201E #89302E #B7403D #CC6865 #DB9593

Accessibility & contrast

On white

5.51

#B7403D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#B7403D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B7403D

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B7403D	#FFFFFF	#000000	##FFFFFF
##B7403D	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)

#60593C

Deuteranopia (green-blind)

#7E723A

Tritanopia (blue-blind)

#C92440

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #b7403d;
/* rgb */ color: rgb(183, 64, 61);
/* oklch */ color: oklch(53.9% 0.155 25.2);

Tailwind

colors: {
  custom: {
    50: '#d47b72',
    500: '#b7403d',
    950: '#000000',
  },
}

SCSS

$custom: #b7403d;
$custom-light: #d47b72;
$custom-dark: #000000;

JSON

{
  "hex": "#b7403d",
  "rgb": {
    "r": 183,
    "g": 64,
    "b": 61
  },
  "hsl": {
    "h": 1.475,
    "s": 50,
    "l": 47.843
  },
  "oklch": {
    "l": 0.53856,
    "c": 0.15481,
    "h": 25.2
  },
  "luminance": 0.14071
}

Semantic roles & 50–950 ramp

primary

#B7403D

secondary

#89C5C6

accent

#D6DA4E

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A08

muted

#837C7B

Preview Lab

Preview with #B7403D

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

Preview Lab → · Contrast checker → · Palette generator →