#40090F#40090F

#40090F is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.7% C 0.083 H 20.2°. Best body text is #FFFFFF at 16.61:1 contrast (WCAG AA passes).

Color values

HEX	#40090F
RGB	rgb(64, 9, 15)
HSL	hsl(353, 75%, 14%)
HSV	hsv(353, 86%, 25%)
CMYK	cmyk(0%, 85.9%, 76.6%, 74.9%)
CIE-LAB	lab(11.42, 26.42, 11.31)
CIE-LCH	lch(11.42, 28.74, 23.17°)
OKLab	oklab(24.66% 0.078 0.0287)
OKLCH	oklch(24.66% 0.083 20.2)
XYZ	xyz(2.2985, 1.3202, 0.5856)
Luminance	0.0132 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40090F #09403A

analogous

#40092B #40090F #401F09

triadic

#40090F #0F4009 #090F40

tetradic

#40090F #2B4009 #09403A #1F0940

square

#40090F #2B4009 #09403A #1F0940

split-complementary

#40090F #09401F #092B40

monochromatic

#1B0406 #1B0406 #40090F #76111C #AB1828

Accessibility & contrast

On white

16.61

#40090F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#40090F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40090F

16.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40090F	#FFFFFF	#000000	##FFFFFF
##40090F	1.00	16.61	1.26	16.61
#FFFFFF	16.61	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19170F

Deuteranopia (green-blind)

#27230D

Tritanopia (blue-blind)

#47000C

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #40090f;
/* rgb */ color: rgb(64, 9, 15);
/* oklch */ color: oklch(24.7% 0.083 20.2);

Tailwind

colors: {
  custom: {
    50: '#7a4e4d',
    500: '#40090f',
    950: '#000000',
  },
}

SCSS

$custom: #40090f;
$custom-light: #7a4e4d;
$custom-dark: #000000;

JSON

{
  "hex": "#40090f",
  "rgb": {
    "r": 64,
    "g": 9,
    "b": 15
  },
  "hsl": {
    "h": 353.455,
    "s": 75.342,
    "l": 14.314
  },
  "oklch": {
    "l": 0.24662,
    "c": 0.08315,
    "h": 20.2
  },
  "luminance": 0.0132
}

Semantic roles & 50–950 ramp

primary

#40090F

secondary

#277E74

accent

#F2DD36

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #40090F

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

Preview Lab → · Contrast checker → · Palette generator →