#B4233F#B4233F

#B4233F is a mid, vivid red. Relative luminance 0.113; OKLCH L 50.6% C 0.179 H 16.6°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#B4233F
RGB	rgb(180, 35, 63)
HSL	hsl(348, 67%, 42%)
HSV	hsv(348, 81%, 71%)
CMYK	cmyk(0%, 80.6%, 65%, 29.4%)
CIE-LAB	lab(40.03, 57.49, 21.32)
CIE-LCH	lch(40.03, 61.32, 20.35°)
OKLab	oklab(50.55% 0.1715 0.0511)
OKLCH	oklch(50.55% 0.179 16.6)
XYZ	xyz(20.3228, 11.2674, 5.8064)
Luminance	0.1126 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4233F #23B498

analogous

#B42387 #B4233F #B45023

triadic

#B4233F #3FB423 #233FB4

tetradic

#B4233F #87B423 #23B498 #5023B4

square

#B4233F #87B423 #23B498 #5023B4

split-complementary

#B4233F #23B450 #2387B4

monochromatic

#4E0F1B #81192D #B4233F #D93B5A #E36E85

Accessibility & contrast

On white

6.46

#B4233F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#B4233F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4233F

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4233F	#FFFFFF	#000000	##FFFFFF
##B4233F	1.00	6.46	3.25	6.46
#FFFFFF	6.46	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E4B3F

Deuteranopia (green-blind)

#73693B

Tritanopia (blue-blind)

#C6002F

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #b4233f;
/* rgb */ color: rgb(180, 35, 63);
/* oklch */ color: oklch(50.6% 0.179 16.6);

Tailwind

colors: {
  custom: {
    50: '#d26d73',
    500: '#b4233f',
    950: '#000000',
  },
}

SCSS

$custom: #b4233f;
$custom-light: #d26d73;
$custom-dark: #000000;

JSON

{
  "hex": "#b4233f",
  "rgb": {
    "r": 180,
    "g": 35,
    "b": 63
  },
  "hsl": {
    "h": 348.414,
    "s": 67.442,
    "l": 42.157
  },
  "oklch": {
    "l": 0.50553,
    "c": 0.17895,
    "h": 16.6
  },
  "luminance": 0.11264
}

Semantic roles & 50–950 ramp

primary

#B4233F

secondary

#69C9B7

accent

#EAC93D

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160808

muted

#847B7B

Preview Lab

Preview with #B4233F

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

Preview Lab → · Contrast checker → · Palette generator →