#B3241B#B3241B

#B3241B is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.9% C 0.180 H 29.0°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#B3241B
RGB	rgb(179, 36, 27)
HSL	hsl(4, 74%, 40%)
HSV	hsv(4, 85%, 70%)
CMYK	cmyk(0%, 79.9%, 84.9%, 29.8%)
CIE-LAB	lab(39.46, 55.45, 41.78)
CIE-LCH	lch(39.46, 69.43, 37.00°)
OKLab	oklab(49.95% 0.1575 0.0874)
OKLCH	oklch(49.95% 0.18 29)
XYZ	xyz(19.4215, 10.9278, 2.1234)
Luminance	0.1092 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B3241B #1BAAB3

analogous

#B31B5E #B3241B #B3701B

triadic

#B3241B #1BB324 #241BB3

tetradic

#B3241B #5EB31B #1BAAB3 #701BB3

square

#B3241B #5EB31B #1BAAB3 #701BB3

split-complementary

#B3241B #1BB370 #1B5EB3

monochromatic

#490F0B #7E1913 #B3241B #DF372C #E76961

Accessibility & contrast

On white

6.59

#B3241B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#B3241B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B3241B

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B3241B	#FFFFFF	#000000	##FFFFFF
##B3241B	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524918

Deuteranopia (green-blind)

#756812

Tritanopia (blue-blind)

#C60024

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b3241b;
/* rgb */ color: rgb(179, 36, 27);
/* oklch */ color: oklch(49.9% 0.180 29.0);

Tailwind

colors: {
  custom: {
    50: '#d46d5a',
    500: '#b3241b',
    950: '#000000',
  },
}

SCSS

$custom: #b3241b;
$custom-light: #d46d5a;
$custom-dark: #000000;

JSON

{
  "hex": "#b3241b",
  "rgb": {
    "r": 179,
    "g": 36,
    "b": 27
  },
  "hsl": {
    "h": 3.553,
    "s": 73.786,
    "l": 40.392
  },
  "oklch": {
    "l": 0.49946,
    "c": 0.18009,
    "h": 29
  },
  "luminance": 0.10925
}

Semantic roles & 50–950 ramp

primary

#B3241B

secondary

#5EC5CC

accent

#E5F037

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #B3241B

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

Preview Lab → · Contrast checker → · Palette generator →