#B23F2A#B23F2A

#B23F2A is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.6% C 0.154 H 32.5°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#B23F2A
RGB	rgb(178, 63, 42)
HSL	hsl(9, 62%, 43%)
HSV	hsv(9, 76%, 70%)
CMYK	cmyk(0%, 64.6%, 76.4%, 30.2%)
CIE-LAB	lab(43.05, 45.62, 37.30)
CIE-LCH	lch(43.05, 58.92, 39.27°)
OKLab	oklab(52.64% 0.1297 0.0827)
OKLCH	oklch(52.64% 0.154 32.5)
XYZ	xyz(20.5578, 13.1901, 3.6535)
Luminance	0.1319 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23F2A #2A9DB2

analogous

#B22A59 #B23F2A #B2832A

triadic

#B23F2A #2AB23F #3F2AB2

tetradic

#B23F2A #59B22A #2A9DB2 #832AB2

square

#B23F2A #59B22A #2A9DB2 #832AB2

split-complementary

#B23F2A #2AB283 #2A59B2

monochromatic

#4F1C13 #802D1E #B23F2A #D35C46 #DF8777

Accessibility & contrast

On white

5.77

#B23F2A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B23F2A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23F2A

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23F2A	#FFFFFF	#000000	##FFFFFF
##B23F2A	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5627

Deuteranopia (green-blind)

#7C6F26

Tritanopia (blue-blind)

#C4203B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b23f2a;
/* rgb */ color: rgb(178, 63, 42);
/* oklch */ color: oklch(52.6% 0.154 32.5);

Tailwind

colors: {
  custom: {
    50: '#d17965',
    500: '#b23f2a',
    950: '#000000',
  },
}

SCSS

$custom: #b23f2a;
$custom-light: #d17965;
$custom-dark: #000000;

JSON

{
  "hex": "#b23f2a",
  "rgb": {
    "r": 178,
    "g": 63,
    "b": 42
  },
  "hsl": {
    "h": 9.265,
    "s": 61.818,
    "l": 43.137
  },
  "oklch": {
    "l": 0.52641,
    "c": 0.15386,
    "h": 32.5
  },
  "luminance": 0.13187
}

Semantic roles & 50–950 ramp

primary

#B23F2A

secondary

#71BAC7

accent

#CCE543

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150905

muted

#837B7A

Preview Lab

Preview with #B23F2A

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

Preview Lab → · Contrast checker → · Palette generator →