#B7343B#B7343B

#B7343B is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.5% C 0.167 H 22.3°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#B7343B
RGB	rgb(183, 52, 59)
HSL	hsl(357, 56%, 46%)
HSV	hsv(357, 72%, 72%)
CMYK	cmyk(0%, 71.6%, 67.8%, 28.2%)
CIE-LAB	lab(42.52, 52.62, 27.06)
CIE-LCH	lch(42.52, 59.17, 27.21°)
OKLab	oklab(52.49% 0.1547 0.0634)
OKLCH	oklch(52.49% 0.167 22.3)
XYZ	xyz(21.5482, 12.8422, 5.4810)
Luminance	0.1284 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B7343B #34B7B0

analogous

#B7347C #B7343B #B76E34

triadic

#B7343B #3BB734 #343BB7

tetradic

#B7343B #7CB734 #34B7B0 #6E34B7

square

#B7343B #7CB734 #34B7B0 #6E34B7

split-complementary

#B7343B #34B76E #347CB7

monochromatic

#58191C #87262C #B7343B #D0595F #DD888D

Accessibility & contrast

On white

5.89

#B7343B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B7343B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B7343B

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B7343B	#FFFFFF	#000000	##FFFFFF
##B7343B	1.00	5.89	3.57	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59533A

Deuteranopia (green-blind)

#7A6F37

Tritanopia (blue-blind)

#C90438

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b7343b;
/* rgb */ color: rgb(183, 52, 59);
/* oklch */ color: oklch(52.5% 0.167 22.3);

Tailwind

colors: {
  custom: {
    50: '#d47571',
    500: '#b7343b',
    950: '#000000',
  },
}

SCSS

$custom: #b7343b;
$custom-light: #d47571;
$custom-dark: #000000;

JSON

{
  "hex": "#b7343b",
  "rgb": {
    "r": 183,
    "g": 52,
    "b": 59
  },
  "hsl": {
    "h": 356.794,
    "s": 55.745,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52489,
    "c": 0.16717,
    "h": 22.3
  },
  "luminance": 0.12839
}

Semantic roles & 50–950 ramp

primary

#B7343B

secondary

#80C7C3

accent

#DFD749

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B7343B

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

Preview Lab → · Contrast checker → · Palette generator →