#40191B#40191B

#40191B is a dark, moderate red. Relative luminance 0.019; OKLCH L 27.3% C 0.061 H 18.9°. Best body text is #FFFFFF at 15.30:1 contrast (WCAG AA passes).

Color values

HEX	#40191B
RGB	rgb(64, 25, 27)
HSL	hsl(357, 44%, 17%)
HSV	hsv(357, 61%, 25%)
CMYK	cmyk(0%, 60.9%, 57.8%, 74.9%)
CIE-LAB	lab(14.76, 19.22, 7.84)
CIE-LCH	lch(14.76, 20.75, 22.19°)
OKLab	oklab(27.26% 0.0577 0.0197)
OKLCH	oklch(27.26% 0.061 18.9)
XYZ	xyz(2.6600, 1.8647, 1.2565)
Luminance	0.0186 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40191B #19403E

analogous

#40192F #40191B #402B19

triadic

#40191B #1B4019 #191B40

tetradic

#40191B #2F4019 #19403E #2B1940

square

#40191B #2F4019 #19403E #2B1940

split-complementary

#40191B #19402B #192F40

monochromatic

#160909 #160909 #40191B #6C2A2E #983B40

Accessibility & contrast

On white

15.30

#40191B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#40191B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40191B

15.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40191B	#FFFFFF	#000000	##FFFFFF
##40191B	1.00	15.30	1.37	15.30
#FFFFFF	15.30	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22201B

Deuteranopia (green-blind)

#2C281A

Tritanopia (blue-blind)

#46131A

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #40191b;
/* rgb */ color: rgb(64, 25, 27);
/* oklch */ color: oklch(27.3% 0.061 18.9);

Tailwind

colors: {
  custom: {
    50: '#785757',
    500: '#40191b',
    950: '#000000',
  },
}

SCSS

$custom: #40191b;
$custom-light: #785757;
$custom-dark: #000000;

JSON

{
  "hex": "#40191b",
  "rgb": {
    "r": 64,
    "g": 25,
    "b": 27
  },
  "hsl": {
    "h": 356.923,
    "s": 43.82,
    "l": 17.451
  },
  "oklch": {
    "l": 0.27257,
    "c": 0.06092,
    "h": 18.9
  },
  "luminance": 0.01864
}

Semantic roles & 50–950 ramp

primary

#40191B

secondary

#3F7673

accent

#D4CD54

background

#F7F5F5

surface

#EDE9E9

border

#C8C5C5

text

#090303

muted

#7B7878

Preview Lab

Preview with #40191B

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

Preview Lab → · Contrast checker → · Palette generator →