#A42B1F#A42B1F

#A42B1F is a mid, vivid red. Relative luminance 0.097; OKLCH L 47.8% C 0.159 H 29.7°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#A42B1F
RGB	rgb(164, 43, 31)
HSL	hsl(5, 68%, 38%)
HSV	hsv(5, 81%, 64%)
CMYK	cmyk(0%, 73.8%, 81.1%, 35.7%)
CIE-LAB	lab(37.34, 48.58, 36.61)
CIE-LCH	lch(37.34, 60.83, 37.00°)
OKLab	oklab(47.85% 0.1383 0.0791)
OKLCH	oklch(47.85% 0.159 29.7)
XYZ	xyz(16.4230, 9.7218, 2.3078)
Luminance	0.0972 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A42B1F #1F98A4

analogous

#A41F55 #A42B1F #A46E1F

triadic

#A42B1F #1FA42B #2B1FA4

tetradic

#A42B1F #55A41F #1F98A4 #6E1FA4

square

#A42B1F #55A41F #1F98A4 #6E1FA4

split-complementary

#A42B1F #1FA46E #1F55A4

monochromatic

#3D100C #711E15 #A42B1F #D7392A #E0695D

Accessibility & contrast

On white

7.13

#A42B1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#A42B1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A42B1F

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A42B1F	#FFFFFF	#000000	##FFFFFF
##A42B1F	1.00	7.13	2.94	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F471C

Deuteranopia (green-blind)

#6D6219

Tritanopia (blue-blind)

#B50029

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #a42b1f;
/* rgb */ color: rgb(164, 43, 31);
/* oklch */ color: oklch(47.8% 0.159 29.7);

Tailwind

colors: {
  custom: {
    50: '#c86d5c',
    500: '#a42b1f',
    950: '#000000',
  },
}

SCSS

$custom: #a42b1f;
$custom-light: #c86d5c;
$custom-dark: #000000;

JSON

{
  "hex": "#a42b1f",
  "rgb": {
    "r": 164,
    "g": 43,
    "b": 31
  },
  "hsl": {
    "h": 5.414,
    "s": 68.205,
    "l": 38.235
  },
  "oklch": {
    "l": 0.47846,
    "c": 0.15934,
    "h": 29.7
  },
  "luminance": 0.09719
}

Semantic roles & 50–950 ramp

primary

#A42B1F

secondary

#5ABBC5

accent

#DBEB3D

background

#FDF6F5

surface

#FAECE9

border

#D3C7C5

text

#150804

muted

#837B79

Preview Lab

Preview with #A42B1F

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

Preview Lab → · Contrast checker → · Palette generator →