#B4583A#B4583A

#B4583A is a mid, vivid red. Relative luminance 0.170; OKLCH L 56.7% C 0.128 H 38.6°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#B4583A
RGB	rgb(180, 88, 58)
HSL	hsl(15, 51%, 47%)
HSV	hsv(15, 68%, 71%)
CMYK	cmyk(0%, 51.1%, 67.8%, 29.4%)
CIE-LAB	lab(48.25, 35.00, 34.39)
CIE-LCH	lch(48.25, 49.06, 44.50°)
OKLab	oklab(56.71% 0.0997 0.0795)
OKLCH	oklch(56.71% 0.128 38.6)
XYZ	xyz(23.0779, 16.9910, 6.0665)
Luminance	0.1699 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4583A #3A96B4

analogous

#B43A59 #B4583A #B4953A

triadic

#B4583A #3AB458 #583AB4

tetradic

#B4583A #59B43A #3A96B4 #953AB4

square

#B4583A #59B43A #3A96B4 #953AB4

split-complementary

#B4583A #3AB495 #3A59B4

monochromatic

#572B1C #86412B #B4583A #CC7A60 #DBA18E

Accessibility & contrast

On white

4.78

#B4583A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#B4583A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4583A

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4583A	#FFFFFF	#000000	##FFFFFF
##B4583A	1.00	4.78	4.40	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#706637

Deuteranopia (green-blind)

#877A38

Tritanopia (blue-blind)

#C54651

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #b4583a;
/* rgb */ color: rgb(180, 88, 58);
/* oklch */ color: oklch(56.7% 0.128 38.6);

Tailwind

colors: {
  custom: {
    50: '#d08971',
    500: '#b4583a',
    950: '#000000',
  },
}

SCSS

$custom: #b4583a;
$custom-light: #d08971;
$custom-dark: #000000;

JSON

{
  "hex": "#b4583a",
  "rgb": {
    "r": 180,
    "g": 88,
    "b": 58
  },
  "hsl": {
    "h": 14.754,
    "s": 51.261,
    "l": 46.667
  },
  "oklch": {
    "l": 0.56705,
    "c": 0.12755,
    "h": 38.6
  },
  "luminance": 0.16988
}

Semantic roles & 50–950 ramp

primary

#B4583A

secondary

#85B5C5

accent

#B8DB4D

background

#FDF8F6

surface

#FBF0EC

border

#D4CBC7

text

#150C08

muted

#837D7B

Preview Lab

Preview with #B4583A

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

Preview Lab → · Contrast checker → · Palette generator →