#B13B40#B13B40

#B13B40 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.3% C 0.153 H 21.8°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#B13B40
RGB	rgb(177, 59, 64)
HSL	hsl(357, 50%, 46%)
HSV	hsv(357, 67%, 69%)
CMYK	cmyk(0%, 66.7%, 63.8%, 30.6%)
CIE-LAB	lab(42.53, 48.15, 23.80)
CIE-LCH	lch(42.53, 53.71, 26.30°)
OKLab	oklab(52.32% 0.1423 0.0569)
OKLCH	oklch(52.32% 0.153 21.8)
XYZ	xyz(20.6229, 12.8481, 6.2435)
Luminance	0.1285 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13B40 #3BB1AC

analogous

#B13B7B #B13B40 #B1713B

triadic

#B13B40 #40B13B #3B40B1

tetradic

#B13B40 #7BB13B #3BB1AC #713BB1

square

#B13B40 #7BB13B #3BB1AC #713BB1

split-complementary

#B13B40 #3BB171 #3B7BB1

monochromatic

#551C1F #832C2F #B13B40 #CA5F64 #D98D91

Accessibility & contrast

On white

5.88

#B13B40 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B13B40 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13B40

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13B40	#FFFFFF	#000000	##FFFFFF
##B13B40	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A553F

Deuteranopia (green-blind)

#786E3D

Tritanopia (blue-blind)

#C21F3E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b13b40;
/* rgb */ color: rgb(177, 59, 64);
/* oklch */ color: oklch(52.3% 0.153 21.8);

Tailwind

colors: {
  custom: {
    50: '#cf7874',
    500: '#b13b40',
    950: '#000000',
  },
}

SCSS

$custom: #b13b40;
$custom-light: #cf7874;
$custom-dark: #000000;

JSON

{
  "hex": "#b13b40",
  "rgb": {
    "r": 177,
    "g": 59,
    "b": 64
  },
  "hsl": {
    "h": 357.458,
    "s": 50,
    "l": 46.275
  },
  "oklch": {
    "l": 0.5232,
    "c": 0.15322,
    "h": 21.8
  },
  "luminance": 0.12845
}

Semantic roles & 50–950 ramp

primary

#B13B40

secondary

#84C4C1

accent

#DAD44E

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B13B40

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

Preview Lab → · Contrast checker → · Palette generator →