#B23E2A#B23E2A

#B23E2A is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.5% C 0.155 H 32.1°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#B23E2A
RGB	rgb(178, 62, 42)
HSL	hsl(9, 62%, 43%)
HSV	hsv(9, 76%, 70%)
CMYK	cmyk(0%, 65.2%, 76.4%, 30.2%)
CIE-LAB	lab(42.88, 46.06, 37.12)
CIE-LCH	lch(42.88, 59.16, 38.87°)
OKLab	oklab(52.52% 0.1311 0.0823)
OKLCH	oklch(52.52% 0.155 32.1)
XYZ	xyz(20.5029, 13.0804, 3.6352)
Luminance	0.1308 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23E2A #2A9EB2

analogous

#B22A5A #B23E2A #B2822A

triadic

#B23E2A #2AB23E #3E2AB2

tetradic

#B23E2A #5AB22A #2A9EB2 #822AB2

square

#B23E2A #5AB22A #2A9EB2 #822AB2

split-complementary

#B23E2A #2AB282 #2A5AB2

monochromatic

#4F1C13 #802D1E #B23E2A #D35B46 #DF8777

Accessibility & contrast

On white

5.81

#B23E2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#B23E2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23E2A

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23E2A	#FFFFFF	#000000	##FFFFFF
##B23E2A	1.00	5.81	3.62	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5527

Deuteranopia (green-blind)

#7B6F26

Tritanopia (blue-blind)

#C41F3A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b23e2a;
/* rgb */ color: rgb(178, 62, 42);
/* oklch */ color: oklch(52.5% 0.155 32.1);

Tailwind

colors: {
  custom: {
    50: '#d17965',
    500: '#b23e2a',
    950: '#000000',
  },
}

SCSS

$custom: #b23e2a;
$custom-light: #d17965;
$custom-dark: #000000;

JSON

{
  "hex": "#b23e2a",
  "rgb": {
    "r": 178,
    "g": 62,
    "b": 42
  },
  "hsl": {
    "h": 8.824,
    "s": 61.818,
    "l": 43.137
  },
  "oklch": {
    "l": 0.52518,
    "c": 0.15481,
    "h": 32.1
  },
  "luminance": 0.13077
}

Semantic roles & 50–950 ramp

primary

#B23E2A

secondary

#71BAC7

accent

#CDE543

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150905

muted

#837B7A

Preview Lab

Preview with #B23E2A

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

Preview Lab → · Contrast checker → · Palette generator →