#B01F27#B01F27

#B01F27 is a mid, vivid red. Relative luminance 0.104; OKLCH L 49.1% C 0.179 H 24.7°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#B01F27
RGB	rgb(176, 31, 39)
HSL	hsl(357, 70%, 41%)
HSV	hsv(357, 82%, 69%)
CMYK	cmyk(0%, 82.4%, 77.8%, 31%)
CIE-LAB	lab(38.48, 56.30, 33.99)
CIE-LCH	lch(38.48, 65.77, 31.12°)
OKLab	oklab(49.15% 0.1629 0.0749)
OKLCH	oklch(49.15% 0.179 24.7)
XYZ	xyz(18.7630, 10.3596, 2.9307)
Luminance	0.1036 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B01F27 #1FB0A8

analogous

#B01F6F #B01F27 #B0601F

triadic

#B01F27 #27B01F #1F27B0

tetradic

#B01F27 #6FB01F #1FB0A8 #601FB0

square

#B01F27 #6FB01F #1FB0A8 #601FB0

split-complementary

#B01F27 #1FB060 #1F6FB0

monochromatic

#480D10 #7C161B #B01F27 #DB313B #E4656C

Accessibility & contrast

On white

6.84

#B01F27 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#B01F27 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B01F27

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B01F27	#FFFFFF	#000000	##FFFFFF
##B01F27	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E4726

Deuteranopia (green-blind)

#716621

Tritanopia (blue-blind)

#C20024

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #b01f27;
/* rgb */ color: rgb(176, 31, 39);
/* oklch */ color: oklch(49.1% 0.179 24.7);

Tailwind

colors: {
  custom: {
    50: '#d16b61',
    500: '#b01f27',
    950: '#000000',
  },
}

SCSS

$custom: #b01f27;
$custom-light: #d16b61;
$custom-dark: #000000;

JSON

{
  "hex": "#b01f27",
  "rgb": {
    "r": 176,
    "g": 31,
    "b": 39
  },
  "hsl": {
    "h": 356.69,
    "s": 70.048,
    "l": 40.588
  },
  "oklch": {
    "l": 0.4915,
    "c": 0.17928,
    "h": 24.7
  },
  "luminance": 0.10357
}

Semantic roles & 50–950 ramp

primary

#B01F27

secondary

#62C9C3

accent

#EDE33B

background

#FEF6F5

surface

#FCECEA

border

#D5C7C6

text

#160705

muted

#847A79

Preview Lab

Preview with #B01F27

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

Preview Lab → · Contrast checker → · Palette generator →