#4B100E#4B100E

#4B100E is a dark, moderate red. Relative luminance 0.019; OKLCH L 27.7% C 0.089 H 26.7°. Best body text is #FFFFFF at 15.22:1 contrast (WCAG AA passes).

Color values

HEX	#4B100E
RGB	rgb(75, 16, 14)
HSL	hsl(2, 69%, 17%)
HSV	hsv(2, 81%, 29%)
CMYK	cmyk(0%, 78.7%, 81.3%, 70.6%)
CIE-LAB	lab(14.95, 27.50, 16.97)
CIE-LCH	lch(14.95, 32.31, 31.68°)
OKLab	oklab(27.74% 0.0795 0.04)
OKLCH	oklch(27.74% 0.089 26.7)
XYZ	xyz(3.1666, 1.8986, 0.6151)
Luminance	0.0190 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B100E #0E494B

analogous

#4B0E2B #4B100E #4B2E0E

triadic

#4B100E #0E4B10 #100E4B

tetradic

#4B100E #2B4B0E #0E494B #2E0E4B

square

#4B100E #2B4B0E #0E494B #2E0E4B

split-complementary

#4B100E #0E4B2E #0E2B4B

monochromatic

#1A0605 #1A0605 #4B100E #7F1B18 #B22621

Accessibility & contrast

On white

15.22

#4B100E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#4B100E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B100E

15.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B100E	#FFFFFF	#000000	##FFFFFF
##4B100E	1.00	15.22	1.38	15.22
#FFFFFF	15.22	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#211D0D

Deuteranopia (green-blind)

#302A0C

Tritanopia (blue-blind)

#530010

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #4b100e;
/* rgb */ color: rgb(75, 16, 14);
/* oklch */ color: oklch(27.7% 0.089 26.7);

Tailwind

colors: {
  custom: {
    50: '#83534d',
    500: '#4b100e',
    950: '#000000',
  },
}

SCSS

$custom: #4b100e;
$custom-light: #83534d;
$custom-dark: #000000;

JSON

{
  "hex": "#4b100e",
  "rgb": {
    "r": 75,
    "g": 16,
    "b": 14
  },
  "hsl": {
    "h": 1.967,
    "s": 68.539,
    "l": 17.451
  },
  "oklch": {
    "l": 0.27736,
    "c": 0.08901,
    "h": 26.7
  },
  "luminance": 0.01898
}

Semantic roles & 50–950 ramp

primary

#4B100E

secondary

#2F8386

accent

#E6EB3C

background

#F8F4F4

surface

#F0E7E7

border

#CBC3C3

text

#0C0301

muted

#7D7877

Preview Lab

Preview with #4B100E

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

Preview Lab → · Contrast checker → · Palette generator →