#B1503B#B1503B

#B1503B is a mid, vivid red. Relative luminance 0.154; OKLCH L 55.0% C 0.132 H 33.7°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#B1503B
RGB	rgb(177, 80, 59)
HSL	hsl(11, 50%, 46%)
HSV	hsv(11, 67%, 69%)
CMYK	cmyk(0%, 54.8%, 66.7%, 30.6%)
CIE-LAB	lab(46.18, 38.00, 31.26)
CIE-LCH	lch(46.18, 49.21, 39.44°)
OKLab	oklab(55.04% 0.1095 0.073)
OKLCH	oklch(55.04% 0.132 33.7)
XYZ	xyz(21.7916, 15.4029, 5.9623)
Luminance	0.1540 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1503B #3B9CB1

analogous

#B13B61 #B1503B #B18B3B

triadic

#B1503B #3BB150 #503BB1

tetradic

#B1503B #61B13B #3B9CB1 #8B3BB1

square

#B1503B #61B13B #3B9CB1 #8B3BB1

split-complementary

#B1503B #3BB18B #3B61B1

monochromatic

#55271C #833B2C #B1503B #CA725F #D99B8D

Accessibility & contrast

On white

5.15

#B1503B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#B1503B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1503B

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1503B	#FFFFFF	#000000	##FFFFFF
##B1503B	1.00	5.15	4.08	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.08	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#696039

Deuteranopia (green-blind)

#817539

Tritanopia (blue-blind)

#C23D4B

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #b1503b;
/* rgb */ color: rgb(177, 80, 59);
/* oklch */ color: oklch(55.0% 0.132 33.7);

Tailwind

colors: {
  custom: {
    50: '#ce8471',
    500: '#b1503b',
    950: '#000000',
  },
}

SCSS

$custom: #b1503b;
$custom-light: #ce8471;
$custom-dark: #000000;

JSON

{
  "hex": "#b1503b",
  "rgb": {
    "r": 177,
    "g": 80,
    "b": 59
  },
  "hsl": {
    "h": 10.678,
    "s": 50,
    "l": 46.275
  },
  "oklch": {
    "l": 0.55044,
    "c": 0.13157,
    "h": 33.7
  },
  "luminance": 0.154
}

Semantic roles & 50–950 ramp

primary

#B1503B

secondary

#84B8C4

accent

#C1DA4E

background

#FDF8F6

surface

#FAEFEC

border

#D3CAC7

text

#150B08

muted

#837C7B

Preview Lab

Preview with #B1503B

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

Preview Lab → · Contrast checker → · Palette generator →