#B4253F#B4253F

#B4253F is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.7% C 0.177 H 16.9°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#B4253F
RGB	rgb(180, 37, 63)
HSL	hsl(349, 66%, 43%)
HSV	hsv(349, 79%, 71%)
CMYK	cmyk(0%, 79.4%, 65%, 29.4%)
CIE-LAB	lab(40.23, 56.93, 21.58)
CIE-LCH	lch(40.23, 60.88, 20.76°)
OKLab	oklab(50.7% 0.1697 0.0517)
OKLCH	oklch(50.7% 0.177 16.9)
XYZ	xyz(20.3834, 11.3884, 5.8266)
Luminance	0.1139 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4253F #25B49A

analogous

#B42586 #B4253F #B45325

triadic

#B4253F #3FB425 #253FB4

tetradic

#B4253F #86B425 #25B49A #5325B4

square

#B4253F #86B425 #25B49A #5325B4

split-complementary

#B4253F #25B453 #2586B4

monochromatic

#4E101B #811B2D #B4253F #D73F5A #E27186

Accessibility & contrast

On white

6.41

#B4253F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#B4253F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4253F

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4253F	#FFFFFF	#000000	##FFFFFF
##B4253F	1.00	6.41	3.28	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4C3F

Deuteranopia (green-blind)

#73693B

Tritanopia (blue-blind)

#C60030

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b4253f;
/* rgb */ color: rgb(180, 37, 63);
/* oklch */ color: oklch(50.7% 0.177 16.9);

Tailwind

colors: {
  custom: {
    50: '#d26e73',
    500: '#b4253f',
    950: '#000000',
  },
}

SCSS

$custom: #b4253f;
$custom-light: #d26e73;
$custom-dark: #000000;

JSON

{
  "hex": "#b4253f",
  "rgb": {
    "r": 180,
    "g": 37,
    "b": 63
  },
  "hsl": {
    "h": 349.091,
    "s": 65.899,
    "l": 42.549
  },
  "oklch": {
    "l": 0.50701,
    "c": 0.17738,
    "h": 16.9
  },
  "luminance": 0.11385
}

Semantic roles & 50–950 ramp

primary

#B4253F

secondary

#6CC9B8

accent

#E9CA3F

background

#FEF7F7

surface

#FCEDED

border

#D5C8C8

text

#160808

muted

#847B7B

Preview Lab

Preview with #B4253F

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

Preview Lab → · Contrast checker → · Palette generator →