#B23E37#B23E37

#B23E37 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.7% C 0.152 H 27.0°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#B23E37
RGB	rgb(178, 62, 55)
HSL	hsl(3, 53%, 46%)
HSV	hsv(3, 69%, 70%)
CMYK	cmyk(0%, 65.2%, 69.1%, 30.2%)
CIE-LAB	lab(43.05, 46.67, 29.87)
CIE-LCH	lch(43.05, 55.42, 32.62°)
OKLab	oklab(52.69% 0.1357 0.0693)
OKLCH	oklch(52.69% 0.152 27)
XYZ	xyz(20.7745, 13.1890, 5.0655)
Luminance	0.1319 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23E37 #37ABB2

analogous

#B2376D #B23E37 #B27C37

triadic

#B23E37 #37B23E #3E37B2

tetradic

#B23E37 #6DB237 #37ABB2 #7C37B2

square

#B23E37 #6DB237 #37ABB2 #7C37B2

split-complementary

#B23E37 #37B27C #376DB2

monochromatic

#541D1A #832E29 #B23E37 #CC615A #DB8E89

Accessibility & contrast

On white

5.77

#B23E37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B23E37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23E37

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23E37	#FFFFFF	#000000	##FFFFFF
##B23E37	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)

#5D5635

Deuteranopia (green-blind)

#7A6F34

Tritanopia (blue-blind)

#C3213D

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b23e37;
/* rgb */ color: rgb(178, 62, 55);
/* oklch */ color: oklch(52.7% 0.152 27.0);

Tailwind

colors: {
  custom: {
    50: '#d0796e',
    500: '#b23e37',
    950: '#000000',
  },
}

SCSS

$custom: #b23e37;
$custom-light: #d0796e;
$custom-dark: #000000;

JSON

{
  "hex": "#b23e37",
  "rgb": {
    "r": 178,
    "g": 62,
    "b": 55
  },
  "hsl": {
    "h": 3.415,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.52692,
    "c": 0.15232,
    "h": 27
  },
  "luminance": 0.13186
}

Semantic roles & 50–950 ramp

primary

#B23E37

secondary

#80C1C5

accent

#D4DC4C

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B23E37

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

Preview Lab → · Contrast checker → · Palette generator →