#4B1010#4B1010

#4B1010 is a dark, moderate red. Relative luminance 0.019; OKLCH L 27.8% C 0.089 H 25.1°. Best body text is #FFFFFF at 15.21:1 contrast (WCAG AA passes).

Color values

HEX	#4B1010
RGB	rgb(75, 16, 16)
HSL	hsl(0, 65%, 18%)
HSV	hsv(0, 79%, 29%)
CMYK	cmyk(0%, 78.7%, 78.7%, 70.6%)
CIE-LAB	lab(14.98, 27.61, 15.95)
CIE-LCH	lch(14.98, 31.88, 30.02°)
OKLab	oklab(27.77% 0.0804 0.0376)
OKLCH	oklch(27.77% 0.089 25.1)
XYZ	xyz(3.1808, 1.9043, 0.6902)
Luminance	0.0190 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B1010 #104B4B

analogous

#4B102D #4B1010 #4B2D10

triadic

#4B1010 #104B10 #10104B

tetradic

#4B1010 #2D4B10 #104B4B #2D104B

square

#4B1010 #2D4B10 #104B4B #2D104B

split-complementary

#4B1010 #104B2D #102D4B

monochromatic

#190505 #190505 #4B1010 #7D1B1B #B02626

Accessibility & contrast

On white

15.21

#4B1010 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#4B1010 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B1010

15.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B1010	#FFFFFF	#000000	##FFFFFF
##4B1010	1.00	15.21	1.38	15.21
#FFFFFF	15.21	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#211E0F

Deuteranopia (green-blind)

#302A0E

Tritanopia (blue-blind)

#530011

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #4b1010;
/* rgb */ color: rgb(75, 16, 16);
/* oklch */ color: oklch(27.8% 0.089 25.1);

Tailwind

colors: {
  custom: {
    50: '#83534e',
    500: '#4b1010',
    950: '#000000',
  },
}

SCSS

$custom: #4b1010;
$custom-light: #83534e;
$custom-dark: #000000;

JSON

{
  "hex": "#4b1010",
  "rgb": {
    "r": 75,
    "g": 16,
    "b": 16
  },
  "hsl": {
    "h": 0,
    "s": 64.835,
    "l": 17.843
  },
  "oklch": {
    "l": 0.27769,
    "c": 0.0887,
    "h": 25.1
  },
  "luminance": 0.01904
}

Semantic roles & 50–950 ramp

primary

#4B1010

secondary

#328585

accent

#E8E840

background

#F8F4F4

surface

#F0E7E7

border

#CBC3C3

text

#0C0301

muted

#7D7877

Preview Lab

Preview with #4B1010

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

Preview Lab → · Contrast checker → · Palette generator →