#401B1B#401B1B

#401B1B is a dark, muted red. Relative luminance 0.020; OKLCH L 27.6% C 0.058 H 21.5°. Best body text is #FFFFFF at 15.10:1 contrast (WCAG AA passes).

Color values

HEX	#401B1B
RGB	rgb(64, 27, 27)
HSL	hsl(0, 41%, 18%)
HSV	hsv(0, 58%, 25%)
CMYK	cmyk(0%, 57.8%, 57.8%, 74.9%)
CIE-LAB	lab(15.24, 17.99, 8.49)
CIE-LCH	lch(15.24, 19.89, 25.27°)
OKLab	oklab(27.62% 0.0538 0.0212)
OKLCH	oklch(27.62% 0.058 21.5)
XYZ	xyz(2.7043, 1.9533, 1.2713)
Luminance	0.0195 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#401B1B #1B4040

analogous

#401B2D #401B1B #402D1B

triadic

#401B1B #1B401B #1B1B40

tetradic

#401B1B #2D401B #1B4040 #2D1B40

square

#401B1B #2D401B #1B4040 #2D1B40

split-complementary

#401B1B #1B402D #1B2D40

monochromatic

#160909 #160909 #401B1B #6B2D2D #963F3F

Accessibility & contrast

On white

15.10

#401B1B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#401B1B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #401B1B

15.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##401B1B	#FFFFFF	#000000	##FFFFFF
##401B1B	1.00	15.10	1.39	15.10
#FFFFFF	15.10	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23211B

Deuteranopia (green-blind)

#2D291A

Tritanopia (blue-blind)

#46161B

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #401b1b;
/* rgb */ color: rgb(64, 27, 27);
/* oklch */ color: oklch(27.6% 0.058 21.5);

Tailwind

colors: {
  custom: {
    50: '#775857',
    500: '#401b1b',
    950: '#000000',
  },
}

SCSS

$custom: #401b1b;
$custom-light: #775857;
$custom-dark: #000000;

JSON

{
  "hex": "#401b1b",
  "rgb": {
    "r": 64,
    "g": 27,
    "b": 27
  },
  "hsl": {
    "h": 0,
    "s": 40.659,
    "l": 17.843
  },
  "oklch": {
    "l": 0.27621,
    "c": 0.05786,
    "h": 21.5
  },
  "luminance": 0.01953
}

Semantic roles & 50–950 ramp

primary

#401B1B

secondary

#417575

accent

#D1D157

background

#F7F5F5

surface

#EDE9E9

border

#C8C5C5

text

#090303

muted

#7B7878

Preview Lab

Preview with #401B1B

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

Preview Lab → · Contrast checker → · Palette generator →