#4B1011#4B1011

#4B1011 is a dark, moderate red. Relative luminance 0.019; OKLCH L 27.8% C 0.089 H 24.2°. Best body text is #FFFFFF at 15.20:1 contrast (WCAG AA passes).

Color values

HEX	#4B1011
RGB	rgb(75, 16, 17)
HSL	hsl(359, 65%, 18%)
HSV	hsv(359, 79%, 29%)
CMYK	cmyk(0%, 78.7%, 77.3%, 70.6%)
CIE-LAB	lab(14.99, 27.66, 15.40)
CIE-LCH	lch(14.99, 31.66, 29.11°)
OKLab	oklab(27.79% 0.0808 0.0363)
OKLCH	oklch(27.79% 0.089 24.2)
XYZ	xyz(3.1885, 1.9074, 0.7305)
Luminance	0.0191 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B1011 #104B4A

analogous

#4B102E #4B1011 #4B2C10

triadic

#4B1011 #114B10 #10114B

tetradic

#4B1011 #2E4B10 #104B4A #2C104B

square

#4B1011 #2E4B10 #104B4A #2C104B

split-complementary

#4B1011 #104B2C #102E4B

monochromatic

#190506 #190506 #4B1011 #7D1B1C #B02628

Accessibility & contrast

On white

15.20

#4B1011 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#4B1011 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B1011

15.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B1011	#FFFFFF	#000000	##FFFFFF
##4B1011	1.00	15.20	1.38	15.20
#FFFFFF	15.20	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#211E10

Deuteranopia (green-blind)

#302A0F

Tritanopia (blue-blind)

#530011

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #4b1011;
/* rgb */ color: rgb(75, 16, 17);
/* oklch */ color: oklch(27.8% 0.089 24.2);

Tailwind

colors: {
  custom: {
    50: '#83534f',
    500: '#4b1011',
    950: '#000000',
  },
}

SCSS

$custom: #4b1011;
$custom-light: #83534f;
$custom-dark: #000000;

JSON

{
  "hex": "#4b1011",
  "rgb": {
    "r": 75,
    "g": 16,
    "b": 17
  },
  "hsl": {
    "h": 358.983,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.27787,
    "c": 0.08856,
    "h": 24.2
  },
  "luminance": 0.01907
}

Semantic roles & 50–950 ramp

primary

#4B1011

secondary

#328583

accent

#E8E540

background

#F8F4F4

surface

#F0E7E7

border

#CBC3C3

text

#0B0301

muted

#7C7877

Preview Lab

Preview with #4B1011

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

Preview Lab → · Contrast checker → · Palette generator →