#A7251B#A7251B

#A7251B is a mid, vivid red. Relative luminance 0.096; OKLCH L 47.8% C 0.168 H 29.3°. Best body text is #FFFFFF at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#A7251B
RGB	rgb(167, 37, 27)
HSL	hsl(4, 72%, 38%)
HSV	hsv(4, 84%, 65%)
CMYK	cmyk(0%, 77.8%, 83.8%, 34.5%)
CIE-LAB	lab(37.15, 51.49, 38.79)
CIE-LCH	lch(37.15, 64.46, 37.00°)
OKLab	oklab(47.8% 0.1463 0.0821)
OKLCH	oklch(47.8% 0.168 29.3)
XYZ	xyz(16.7978, 9.6205, 2.0092)
Luminance	0.0962 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A7251B #1B9DA7

analogous

#A71B57 #A7251B #A76B1B

triadic

#A7251B #1BA725 #251BA7

tetradic

#A7251B #57A71B #1B9DA7 #6B1BA7

square

#A7251B #57A71B #1B9DA7 #6B1BA7

split-complementary

#A7251B #1BA76B #1B57A7

monochromatic

#3E0E0A #721912 #A7251B #DC3124 #E46258

Accessibility & contrast

On white

7.18

#A7251B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#A7251B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A7251B

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A7251B	#FFFFFF	#000000	##FFFFFF
##A7251B	1.00	7.18	2.92	7.18
#FFFFFF	7.18	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E4518

Deuteranopia (green-blind)

#6E6214

Tritanopia (blue-blind)

#B80024

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a7251b;
/* rgb */ color: rgb(167, 37, 27);
/* oklch */ color: oklch(47.8% 0.168 29.3);

Tailwind

colors: {
  custom: {
    50: '#cb6b59',
    500: '#a7251b',
    950: '#000000',
  },
}

SCSS

$custom: #a7251b;
$custom-light: #cb6b59;
$custom-dark: #000000;

JSON

{
  "hex": "#a7251b",
  "rgb": {
    "r": 167,
    "g": 37,
    "b": 27
  },
  "hsl": {
    "h": 4.286,
    "s": 72.165,
    "l": 38.039
  },
  "oklch": {
    "l": 0.47802,
    "c": 0.16776,
    "h": 29.3
  },
  "luminance": 0.09618
}

Semantic roles & 50–950 ramp

primary

#A7251B

secondary

#56BFC8

accent

#E2EF39

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#150703

muted

#837A78

Preview Lab

Preview with #A7251B

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

Preview Lab → · Contrast checker → · Palette generator →