#B23428#B23428

#B23428 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.4% C 0.164 H 29.4°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#B23428
RGB	rgb(178, 52, 40)
HSL	hsl(5, 63%, 43%)
HSV	hsv(5, 78%, 70%)
CMYK	cmyk(0%, 70.8%, 77.5%, 30.2%)
CIE-LAB	lab(41.34, 50.11, 36.59)
CIE-LCH	lch(41.34, 62.05, 36.13°)
OKLab	oklab(51.35% 0.1434 0.0806)
OKLCH	oklch(51.35% 0.164 29.4)
XYZ	xyz(19.9734, 12.0772, 3.2865)
Luminance	0.1207 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B23428 #28A6B2

analogous

#B22861 #B23428 #B27928

triadic

#B23428 #28B234 #3428B2

tetradic

#B23428 #61B228 #28A6B2 #7928B2

square

#B23428 #61B228 #28A6B2 #7928B2

split-complementary

#B23428 #28B279 #2861B2

monochromatic

#4E1712 #80251D #B23428 #D54F43 #E07E75

Accessibility & contrast

On white

6.15

#B23428 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#B23428 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B23428

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B23428	#FFFFFF	#000000	##FFFFFF
##B23428	1.00	6.15	3.41	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595026

Deuteranopia (green-blind)

#786C23

Tritanopia (blue-blind)

#C40132

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b23428;
/* rgb */ color: rgb(178, 52, 40);
/* oklch */ color: oklch(51.4% 0.164 29.4);

Tailwind

colors: {
  custom: {
    50: '#d27463',
    500: '#b23428',
    950: '#000000',
  },
}

SCSS

$custom: #b23428;
$custom-light: #d27463;
$custom-dark: #000000;

JSON

{
  "hex": "#b23428",
  "rgb": {
    "r": 178,
    "g": 52,
    "b": 40
  },
  "hsl": {
    "h": 5.217,
    "s": 63.303,
    "l": 42.745
  },
  "oklch": {
    "l": 0.51352,
    "c": 0.16449,
    "h": 29.4
  },
  "luminance": 0.12074
}

Semantic roles & 50–950 ramp

primary

#B23428

secondary

#6FC0C7

accent

#D8E641

background

#FEF7F5

surface

#FCEDEA

border

#D5C8C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B23428

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

Preview Lab → · Contrast checker → · Palette generator →