#40150B#40150B

#40150B is a dark, moderate red. Relative luminance 0.017; OKLCH L 26.2% C 0.070 H 34.5°. Best body text is #FFFFFF at 15.79:1 contrast (WCAG AA passes).

Color values

HEX	#40150B
RGB	rgb(64, 21, 11)
HSL	hsl(11, 71%, 15%)
HSV	hsv(11, 83%, 25%)
CMYK	cmyk(0%, 67.2%, 82.8%, 74.9%)
CIE-LAB	lab(13.54, 20.25, 16.09)
CIE-LCH	lch(13.54, 25.87, 38.47°)
OKLab	oklab(26.23% 0.0576 0.0396)
OKLCH	oklch(26.23% 0.07 34.5)
XYZ	xyz(2.4432, 1.6508, 0.5065)
Luminance	0.0165 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40150B #0B3640

analogous

#400B1B #40150B #40300B

triadic

#40150B #0B4015 #150B40

tetradic

#40150B #1B400B #0B3640 #300B40

square

#40150B #1B400B #0B3640 #300B40

split-complementary

#40150B #0B4030 #0B1B40

monochromatic

#1A0904 #1A0904 #40150B #742614 #A8371D

Accessibility & contrast

On white

15.79

#40150B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#40150B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40150B

15.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40150B	#FFFFFF	#000000	##FFFFFF
##40150B	1.00	15.79	1.33	15.79
#FFFFFF	15.79	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#211D0A

Deuteranopia (green-blind)

#2B260A

Tritanopia (blue-blind)

#470B13

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #40150b;
/* rgb */ color: rgb(64, 21, 11);
/* oklch */ color: oklch(26.2% 0.070 34.5);

Tailwind

colors: {
  custom: {
    50: '#79544b',
    500: '#40150b',
    950: '#000000',
  },
}

SCSS

$custom: #40150b;
$custom-light: #79544b;
$custom-dark: #000000;

JSON

{
  "hex": "#40150b",
  "rgb": {
    "r": 64,
    "g": 21,
    "b": 11
  },
  "hsl": {
    "h": 11.321,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.2623,
    "c": 0.06989,
    "h": 34.5
  },
  "luminance": 0.0165
}

Semantic roles & 50–950 ramp

primary

#40150B

secondary

#2A6D7D

accent

#CCED3A

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0301

muted

#7C7877

Preview Lab

Preview with #40150B

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

Preview Lab → · Contrast checker → · Palette generator →