#B23F2B#B23F2B

#B23F2B is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.7% C 0.154 H 32.2°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#B23F2B
RGB	rgb(178, 63, 43)
HSL	hsl(9, 61%, 43%)
HSV	hsv(9, 76%, 70%)
CMYK	cmyk(0%, 64.6%, 75.8%, 30.2%)
CIE-LAB	lab(43.06, 45.66, 36.76)
CIE-LCH	lch(43.06, 58.62, 38.84°)
OKLab	oklab(52.65% 0.1301 0.0818)
OKLCH	oklch(52.65% 0.154 32.2)
XYZ	xyz(20.5759, 13.1974, 3.7489)
Luminance	0.1319 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23F2B #2B9EB2

analogous

#B22B5A #B23F2B #B2822B

triadic

#B23F2B #2BB23F #3F2BB2

tetradic

#B23F2B #5AB22B #2B9EB2 #822BB2

square

#B23F2B #5AB22B #2B9EB2 #822BB2

split-complementary

#B23F2B #2BB282 #2B5AB2

monochromatic

#4F1C13 #812E1F #B23F2B #D35C48 #DF8879

Accessibility & contrast

On white

5.77

#B23F2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B23F2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23F2B

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23F2B	#FFFFFF	#000000	##FFFFFF
##B23F2B	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)

#5F5628

Deuteranopia (green-blind)

#7C6F27

Tritanopia (blue-blind)

#C4213B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b23f2b;
/* rgb */ color: rgb(178, 63, 43);
/* oklch */ color: oklch(52.7% 0.154 32.2);

Tailwind

colors: {
  custom: {
    50: '#d17965',
    500: '#b23f2b',
    950: '#000000',
  },
}

SCSS

$custom: #b23f2b;
$custom-light: #d17965;
$custom-dark: #000000;

JSON

{
  "hex": "#b23f2b",
  "rgb": {
    "r": 178,
    "g": 63,
    "b": 43
  },
  "hsl": {
    "h": 8.889,
    "s": 61.086,
    "l": 43.333
  },
  "oklch": {
    "l": 0.52653,
    "c": 0.15365,
    "h": 32.2
  },
  "luminance": 0.13194
}

Semantic roles & 50–950 ramp

primary

#B23F2B

secondary

#72BAC7

accent

#CCE444

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B23F2B

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

Preview Lab → · Contrast checker → · Palette generator →