#40090A#40090A

#40090A is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.6% C 0.084 H 25.0°. Best body text is #FFFFFF at 16.65:1 contrast (WCAG AA passes).

Color values

HEX	#40090A
RGB	rgb(64, 9, 10)
HSL	hsl(359, 75%, 14%)
HSV	hsv(359, 86%, 25%)
CMYK	cmyk(0%, 85.9%, 84.4%, 74.9%)
CIE-LAB	lab(11.33, 26.13, 13.52)
CIE-LCH	lch(11.33, 29.42, 27.36°)
OKLab	oklab(24.57% 0.0758 0.0354)
OKLCH	oklch(24.57% 0.084 25)
XYZ	xyz(2.2671, 1.3076, 0.4201)
Luminance	0.0131 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40090A #09403F

analogous

#400926 #40090A #402409

triadic

#40090A #0A4009 #090A40

tetradic

#40090A #264009 #09403F #240940

square

#40090A #264009 #09403F #240940

split-complementary

#40090A #094024 #092640

monochromatic

#1B0404 #1B0404 #40090A #761112 #AB181B

Accessibility & contrast

On white

16.65

#40090A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#40090A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40090A

16.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40090A	#FFFFFF	#000000	##FFFFFF
##40090A	1.00	16.65	1.26	16.65
#FFFFFF	16.65	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1709

Deuteranopia (green-blind)

#272208

Tritanopia (blue-blind)

#47000A

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #40090a;
/* rgb */ color: rgb(64, 9, 10);
/* oklch */ color: oklch(24.6% 0.084 25.0);

Tailwind

colors: {
  custom: {
    50: '#7a4e4b',
    500: '#40090a',
    950: '#000000',
  },
}

SCSS

$custom: #40090a;
$custom-light: #7a4e4b;
$custom-dark: #000000;

JSON

{
  "hex": "#40090a",
  "rgb": {
    "r": 64,
    "g": 9,
    "b": 10
  },
  "hsl": {
    "h": 358.909,
    "s": 75.342,
    "l": 14.314
  },
  "oklch": {
    "l": 0.24569,
    "c": 0.08365,
    "h": 25
  },
  "luminance": 0.01307
}

Semantic roles & 50–950 ramp

primary

#40090A

secondary

#277E7C

accent

#F2EF36

background

#F7F4F4

surface

#EEE7E7

border

#C9C3C3

text

#0A0201

muted

#7C7877

Preview Lab

Preview with #40090A

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

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