#B7423A#B7423A

#B7423A is a mid, vivid red. Relative luminance 0.143; OKLCH L 54.1% C 0.153 H 27.3°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#B7423A
RGB	rgb(183, 66, 58)
HSL	hsl(4, 52%, 47%)
HSV	hsv(4, 68%, 72%)
CMYK	cmyk(0%, 63.9%, 68.3%, 28.2%)
CIE-LAB	lab(44.62, 46.82, 30.20)
CIE-LCH	lch(44.62, 55.72, 32.83°)
OKLab	oklab(54.05% 0.1362 0.0702)
OKLCH	oklch(54.05% 0.153 27.3)
XYZ	xyz(22.2427, 14.2723, 5.5858)
Luminance	0.1427 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B7423A #3AAFB7

analogous

#B73A71 #B7423A #B7813A

triadic

#B7423A #3AB742 #423AB7

tetradic

#B7423A #71B73A #3AAFB7 #813AB7

square

#B7423A #71B73A #3AAFB7 #813AB7

split-complementary

#B7423A #3AB781 #3A71B7

monochromatic

#5A201D #89312B #B7423A #CD6861 #DC9590

Accessibility & contrast

On white

5.45

#B7423A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#B7423A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B7423A

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B7423A	#FFFFFF	#000000	##FFFFFF
##B7423A	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615A38

Deuteranopia (green-blind)

#7F7337

Tritanopia (blue-blind)

#C92641

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #b7423a;
/* rgb */ color: rgb(183, 66, 58);
/* oklch */ color: oklch(54.1% 0.153 27.3);

Tailwind

colors: {
  custom: {
    50: '#d47c70',
    500: '#b7423a',
    950: '#000000',
  },
}

SCSS

$custom: #b7423a;
$custom-light: #d47c70;
$custom-dark: #000000;

JSON

{
  "hex": "#b7423a",
  "rgb": {
    "r": 183,
    "g": 66,
    "b": 58
  },
  "hsl": {
    "h": 3.84,
    "s": 51.867,
    "l": 47.255
  },
  "oklch": {
    "l": 0.54053,
    "c": 0.1532,
    "h": 27.3
  },
  "luminance": 0.14269
}

Semantic roles & 50–950 ramp

primary

#B7423A

secondary

#86C2C7

accent

#D2DB4C

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B7423A

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

Preview Lab → · Contrast checker → · Palette generator →