#B23521#B23521

#B23521 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.4% C 0.165 H 31.8°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#B23521
RGB	rgb(178, 53, 33)
HSL	hsl(8, 69%, 41%)
HSV	hsv(8, 81%, 70%)
CMYK	cmyk(0%, 70.2%, 81.5%, 30.2%)
CIE-LAB	lab(41.41, 49.48, 40.45)
CIE-LCH	lch(41.41, 63.91, 39.26°)
OKLab	oklab(51.39% 0.14 0.0869)
OKLCH	oklch(51.39% 0.165 31.8)
XYZ	xyz(19.9100, 12.1240, 2.7304)
Luminance	0.1212 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23521 #219EB2

analogous

#B22156 #B23521 #B27E21

triadic

#B23521 #21B235 #3521B2

tetradic

#B23521 #56B221 #219EB2 #7E21B2

square

#B23521 #56B221 #219EB2 #7E21B2

split-complementary

#B23521 #21B27E #2156B2

monochromatic

#4B160E #7E2617 #B23521 #DA4D36 #E37B6A

Accessibility & contrast

On white

6.13

#B23521 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#B23521 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23521

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23521	#FFFFFF	#000000	##FFFFFF
##B23521	1.00	6.13	3.42	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A501D

Deuteranopia (green-blind)

#796C1B

Tritanopia (blue-blind)

#C40232

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b23521;
/* rgb */ color: rgb(178, 53, 33);
/* oklch */ color: oklch(51.4% 0.165 31.8);

Tailwind

colors: {
  custom: {
    50: '#d2745e',
    500: '#b23521',
    950: '#000000',
  },
}

SCSS

$custom: #b23521;
$custom-light: #d2745e;
$custom-dark: #000000;

JSON

{
  "hex": "#b23521",
  "rgb": {
    "r": 178,
    "g": 53,
    "b": 33
  },
  "hsl": {
    "h": 8.276,
    "s": 68.72,
    "l": 41.373
  },
  "oklch": {
    "l": 0.51385,
    "c": 0.16478,
    "h": 31.8
  },
  "luminance": 0.12121
}

Semantic roles & 50–950 ramp

primary

#B23521

secondary

#66BBC9

accent

#D3EC3C

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B23521

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

Preview Lab → · Contrast checker → · Palette generator →