#A6251B#A6251B

#A6251B is a mid, vivid red. Relative luminance 0.095; OKLCH L 47.6% C 0.167 H 29.3°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#A6251B
RGB	rgb(166, 37, 27)
HSL	hsl(4, 72%, 38%)
HSV	hsv(4, 84%, 65%)
CMYK	cmyk(0%, 77.7%, 83.7%, 34.9%)
CIE-LAB	lab(36.95, 51.17, 38.53)
CIE-LCH	lch(36.95, 64.06, 36.98°)
OKLab	oklab(47.62% 0.1455 0.0816)
OKLCH	oklch(47.62% 0.167 29.3)
XYZ	xyz(16.5873, 9.5119, 1.9993)
Luminance	0.0951 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6251B #1B9CA6

analogous

#A61B56 #A6251B #A66B1B

triadic

#A6251B #1BA625 #251BA6

tetradic

#A6251B #56A61B #1B9CA6 #6B1BA6

square

#A6251B #56A61B #1B9CA6 #6B1BA6

split-complementary

#A6251B #1BA66B #1B56A6

monochromatic

#3D0E0A #711912 #A6251B #DB3124 #E46258

Accessibility & contrast

On white

7.24

#A6251B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#A6251B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A6251B

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6251B	#FFFFFF	#000000	##FFFFFF
##A6251B	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E4518

Deuteranopia (green-blind)

#6D6114

Tritanopia (blue-blind)

#B70024

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a6251b;
/* rgb */ color: rgb(166, 37, 27);
/* oklch */ color: oklch(47.6% 0.167 29.3);

Tailwind

colors: {
  custom: {
    50: '#ca6b59',
    500: '#a6251b',
    950: '#000000',
  },
}

SCSS

$custom: #a6251b;
$custom-light: #ca6b59;
$custom-dark: #000000;

JSON

{
  "hex": "#a6251b",
  "rgb": {
    "r": 166,
    "g": 37,
    "b": 27
  },
  "hsl": {
    "h": 4.317,
    "s": 72.021,
    "l": 37.843
  },
  "oklch": {
    "l": 0.47617,
    "c": 0.16678,
    "h": 29.3
  },
  "luminance": 0.09509
}

Semantic roles & 50–950 ramp

primary

#A6251B

secondary

#56BFC7

accent

#E2EF39

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#150703

muted

#837A78

Preview Lab

Preview with #A6251B

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

Preview Lab → · Contrast checker → · Palette generator →