#4B1018#4B1018

#4B1018 is a dark, moderate red. Relative luminance 0.019; OKLCH L 27.9% C 0.088 H 17.5°. Best body text is #FFFFFF at 15.15:1 contrast (WCAG AA passes).

Color values

HEX	#4B1018
RGB	rgb(75, 16, 24)
HSL	hsl(352, 65%, 18%)
HSV	hsv(352, 79%, 29%)
CMYK	cmyk(0%, 78.7%, 68%, 70.6%)
CIE-LAB	lab(15.13, 28.14, 10.89)
CIE-LCH	lch(15.13, 30.17, 21.16°)
OKLab	oklab(27.93% 0.084 0.0264)
OKLCH	oklch(27.93% 0.088 17.5)
XYZ	xyz(3.2521, 1.9329, 1.0658)
Luminance	0.0193 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B1018 #104B43

analogous

#4B1035 #4B1018 #4B2510

triadic

#4B1018 #184B10 #10184B

tetradic

#4B1018 #354B10 #104B43 #25104B

square

#4B1018 #354B10 #104B43 #25104B

split-complementary

#4B1018 #104B25 #10354B

monochromatic

#190508 #190508 #4B1018 #7D1B28 #B02638

Accessibility & contrast

On white

15.15

#4B1018 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#4B1018 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B1018

15.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B1018	#FFFFFF	#000000	##FFFFFF
##4B1018	1.00	15.15	1.39	15.15
#FFFFFF	15.15	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#201E18

Deuteranopia (green-blind)

#2F2A16

Tritanopia (blue-blind)

#530213

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #4b1018;
/* rgb */ color: rgb(75, 16, 24);
/* oklch */ color: oklch(27.9% 0.088 17.5);

Tailwind

colors: {
  custom: {
    50: '#825354',
    500: '#4b1018',
    950: '#000000',
  },
}

SCSS

$custom: #4b1018;
$custom-light: #825354;
$custom-dark: #000000;

JSON

{
  "hex": "#4b1018",
  "rgb": {
    "r": 75,
    "g": 16,
    "b": 24
  },
  "hsl": {
    "h": 351.864,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.27933,
    "c": 0.08802,
    "h": 17.5
  },
  "luminance": 0.01932
}

Semantic roles & 50–950 ramp

primary

#4B1018

secondary

#32857A

accent

#E8D140

background

#F8F4F4

surface

#EFE7E7

border

#CAC3C3

text

#0B0302

muted

#7C7878

Preview Lab

Preview with #4B1018

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

Preview Lab → · Contrast checker → · Palette generator →