#40090C#40090C

#40090C is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.6% C 0.083 H 23.2°. Best body text is #FFFFFF at 16.63:1 contrast (WCAG AA passes).

Color values

HEX	#40090C
RGB	rgb(64, 9, 12)
HSL	hsl(357, 75%, 14%)
HSV	hsv(357, 86%, 25%)
CMYK	cmyk(0%, 85.9%, 81.2%, 74.9%)
CIE-LAB	lab(11.36, 26.24, 12.71)
CIE-LCH	lch(11.36, 29.15, 25.84°)
OKLab	oklab(24.6% 0.0767 0.0329)
OKLCH	oklch(24.6% 0.083 23.2)
XYZ	xyz(2.2787, 1.3123, 0.4811)
Luminance	0.0131 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40090C #09403D

analogous

#400928 #40090C #402209

triadic

#40090C #0C4009 #090C40

tetradic

#40090C #284009 #09403D #220940

square

#40090C #284009 #09403D #220940

split-complementary

#40090C #094022 #092840

monochromatic

#1B0405 #1B0405 #40090C #761116 #AB1820

Accessibility & contrast

On white

16.63

#40090C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#40090C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40090C

16.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40090C	#FFFFFF	#000000	##FFFFFF
##40090C	1.00	16.63	1.26	16.63
#FFFFFF	16.63	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19170C

Deuteranopia (green-blind)

#27220A

Tritanopia (blue-blind)

#47000B

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #40090c;
/* rgb */ color: rgb(64, 9, 12);
/* oklch */ color: oklch(24.6% 0.083 23.2);

Tailwind

colors: {
  custom: {
    50: '#7a4e4c',
    500: '#40090c',
    950: '#000000',
  },
}

SCSS

$custom: #40090c;
$custom-light: #7a4e4c;
$custom-dark: #000000;

JSON

{
  "hex": "#40090c",
  "rgb": {
    "r": 64,
    "g": 9,
    "b": 12
  },
  "hsl": {
    "h": 356.727,
    "s": 75.342,
    "l": 14.314
  },
  "oklch": {
    "l": 0.24604,
    "c": 0.08341,
    "h": 23.2
  },
  "luminance": 0.01312
}

Semantic roles & 50–950 ramp

primary

#40090C

secondary

#277E79

accent

#F2E836

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #40090C

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

Preview Lab → · Contrast checker → · Palette generator →