#B23940#B23940

#B23940 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.3% C 0.156 H 21.2°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#B23940
RGB	rgb(178, 57, 64)
HSL	hsl(357, 51%, 46%)
HSV	hsv(357, 68%, 70%)
CMYK	cmyk(0%, 68%, 64%, 30.2%)
CIE-LAB	lab(42.41, 49.32, 23.67)
CIE-LCH	lch(42.41, 54.71, 25.64°)
OKLab	oklab(52.26% 0.1459 0.0566)
OKLCH	oklch(52.26% 0.156 21.2)
XYZ	xyz(20.7507, 12.7643, 6.2206)
Luminance	0.1276 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23940 #39B2AB

analogous

#B2397C #B23940 #B26E39

triadic

#B23940 #40B239 #3940B2

tetradic

#B23940 #7CB239 #39B2AB #6E39B2

square

#B23940 #7CB239 #39B2AB #6E39B2

split-complementary

#B23940 #39B26E #397CB2

monochromatic

#551B1F #842A2F #B23940 #CB5D63 #DA8B90

Accessibility & contrast

On white

5.91

#B23940 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#B23940 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23940

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23940	#FFFFFF	#000000	##FFFFFF
##B23940	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59543F

Deuteranopia (green-blind)

#786E3D

Tritanopia (blue-blind)

#C31B3D

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b23940;
/* rgb */ color: rgb(178, 57, 64);
/* oklch */ color: oklch(52.3% 0.156 21.2);

Tailwind

colors: {
  custom: {
    50: '#d07774',
    500: '#b23940',
    950: '#000000',
  },
}

SCSS

$custom: #b23940;
$custom-light: #d07774;
$custom-dark: #000000;

JSON

{
  "hex": "#b23940",
  "rgb": {
    "r": 178,
    "g": 57,
    "b": 64
  },
  "hsl": {
    "h": 356.529,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52258,
    "c": 0.15644,
    "h": 21.2
  },
  "luminance": 0.12761
}

Semantic roles & 50–950 ramp

primary

#B23940

secondary

#82C4C1

accent

#DBD34D

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B23940

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

Preview Lab → · Contrast checker → · Palette generator →