#4B1019#4B1019

#4B1019 is a dark, moderate red. Relative luminance 0.019; OKLCH L 28.0% C 0.088 H 16.4°. Best body text is #FFFFFF at 15.14:1 contrast (WCAG AA passes).

Color values

HEX	#4B1019
RGB	rgb(75, 16, 25)
HSL	hsl(351, 65%, 18%)
HSV	hsv(351, 79%, 29%)
CMYK	cmyk(0%, 78.7%, 66.7%, 70.6%)
CIE-LAB	lab(15.15, 28.22, 10.20)
CIE-LCH	lch(15.15, 30.00, 19.87°)
OKLab	oklab(27.96% 0.0844 0.0249)
OKLCH	oklch(27.96% 0.088 16.4)
XYZ	xyz(3.2627, 1.9371, 1.1216)
Luminance	0.0194 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B1019 #104B42

analogous

#4B1037 #4B1019 #4B2410

triadic

#4B1019 #194B10 #10194B

tetradic

#4B1019 #374B10 #104B42 #24104B

square

#4B1019 #374B10 #104B42 #24104B

split-complementary

#4B1019 #104B24 #10374B

monochromatic

#190508 #190508 #4B1019 #7D1B2A #B0263B

Accessibility & contrast

On white

15.14

#4B1019 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#4B1019 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B1019

15.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B1019	#FFFFFF	#000000	##FFFFFF
##4B1019	1.00	15.14	1.39	15.14
#FFFFFF	15.14	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#201E19

Deuteranopia (green-blind)

#2F2A17

Tritanopia (blue-blind)

#530214

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #4b1019;
/* rgb */ color: rgb(75, 16, 25);
/* oklch */ color: oklch(28.0% 0.088 16.4);

Tailwind

colors: {
  custom: {
    50: '#825355',
    500: '#4b1019',
    950: '#000000',
  },
}

SCSS

$custom: #4b1019;
$custom-light: #825355;
$custom-dark: #000000;

JSON

{
  "hex": "#4b1019",
  "rgb": {
    "r": 75,
    "g": 16,
    "b": 25
  },
  "hsl": {
    "h": 350.847,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.27957,
    "c": 0.08803,
    "h": 16.4
  },
  "luminance": 0.01937
}

Semantic roles & 50–950 ramp

primary

#4B1019

secondary

#328578

accent

#E8CE40

background

#F8F4F4

surface

#EFE7E7

border

#CAC3C3

text

#0B0303

muted

#7C7878

Preview Lab

Preview with #4B1019

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

Preview Lab → · Contrast checker → · Palette generator →