#4B1017#4B1017

#4B1017 is a dark, moderate red. Relative luminance 0.019; OKLCH L 27.9% C 0.088 H 18.5°. Best body text is #FFFFFF at 15.16:1 contrast (WCAG AA passes).

Color values

HEX	#4B1017
RGB	rgb(75, 16, 23)
HSL	hsl(353, 65%, 18%)
HSV	hsv(353, 79%, 29%)
CMYK	cmyk(0%, 78.7%, 69.3%, 70.6%)
CIE-LAB	lab(15.11, 28.06, 11.59)
CIE-LCH	lch(15.11, 30.36, 22.43°)
OKLab	oklab(27.91% 0.0835 0.0279)
OKLCH	oklch(27.91% 0.088 18.5)
XYZ	xyz(3.2419, 1.9288, 1.0120)
Luminance	0.0193 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B1017 #104B44

analogous

#4B1034 #4B1017 #4B2610

triadic

#4B1017 #174B10 #10174B

tetradic

#4B1017 #344B10 #104B44 #26104B

square

#4B1017 #344B10 #104B44 #26104B

split-complementary

#4B1017 #104B26 #10344B

monochromatic

#190508 #190508 #4B1017 #7D1B26 #B02636

Accessibility & contrast

On white

15.16

#4B1017 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#4B1017 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B1017

15.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B1017	#FFFFFF	#000000	##FFFFFF
##4B1017	1.00	15.16	1.39	15.16
#FFFFFF	15.16	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#201E17

Deuteranopia (green-blind)

#2F2A15

Tritanopia (blue-blind)

#530213

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #4b1017;
/* rgb */ color: rgb(75, 16, 23);
/* oklch */ color: oklch(27.9% 0.088 18.5);

Tailwind

colors: {
  custom: {
    50: '#825353',
    500: '#4b1017',
    950: '#000000',
  },
}

SCSS

$custom: #4b1017;
$custom-light: #825353;
$custom-dark: #000000;

JSON

{
  "hex": "#4b1017",
  "rgb": {
    "r": 75,
    "g": 16,
    "b": 23
  },
  "hsl": {
    "h": 352.881,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.2791,
    "c": 0.08805,
    "h": 18.5
  },
  "luminance": 0.01928
}

Semantic roles & 50–950 ramp

primary

#4B1017

secondary

#32857B

accent

#E8D440

background

#F8F4F4

surface

#EFE7E7

border

#CAC3C3

text

#0B0302

muted

#7C7878

Preview Lab

Preview with #4B1017

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

Preview Lab → · Contrast checker → · Palette generator →