#0A0431#0A0431

#0A0431 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 16.4% C 0.085 H 279.0°. Best body text is #FFFFFF at 19.54:1 contrast (WCAG AA passes).

Color values

HEX	#0A0431
RGB	rgb(10, 4, 49)
HSL	hsl(248, 85%, 10%)
HSV	hsv(248, 92%, 19%)
CMYK	cmyk(79.6%, 91.8%, 0%, 80.8%)
CIE-LAB	lab(3.37, 15.08, -26.60)
CIE-LCH	lch(3.37, 30.58, 299.55°)
OKLab	oklab(16.44% 0.0133 -0.0837)
OKLCH	oklch(16.44% 0.085 279)
XYZ	xyz(0.7228, 0.3731, 2.9391)
Luminance	0.0037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0431 #2B3104

analogous

#041431 #0A0431 #200431

triadic

#0A0431 #310A04 #04310A

tetradic

#0A0431 #310414 #2B3104 #043120

square

#0A0431 #310414 #2B3104 #043120

split-complementary

#0A0431 #312004 #143104

monochromatic

#06021C #06021C #0A0431 #16096A #210DA2

Accessibility & contrast

On white

19.54

#0A0431 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.07

#0A0431 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0431

19.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0431	#FFFFFF	#000000	##FFFFFF
##0A0431	1.00	19.54	1.07	19.54
#FFFFFF	19.54	1.00	21.00	1.00
#000000	1.07	21.00	1.00	21.00
##FFFFFF	19.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000E32

Deuteranopia (green-blind)

#000A30

Tritanopia (blue-blind)

#00111A

Achromatopsia (no color)

#0C0C0C

Design tokens & code

CSS

--color: #0a0431;
/* rgb */ color: rgb(10, 4, 49);
/* oklch */ color: oklch(16.4% 0.085 279.0);

Tailwind

colors: {
  custom: {
    50: '#4e4869',
    500: '#0a0431',
    950: '#000000',
  },
}

SCSS

$custom: #0a0431;
$custom-light: #4e4869;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0431",
  "rgb": {
    "r": 10,
    "g": 4,
    "b": 49
  },
  "hsl": {
    "h": 248,
    "s": 84.906,
    "l": 10.392
  },
  "oklch": {
    "l": 0.16437,
    "c": 0.08473,
    "h": 279
  },
  "luminance": 0.00373
}

Semantic roles & 50–950 ramp

primary

#0A0431

secondary

#68731D

accent

#FB2DE0

background

#F4F4F6

surface

#E7E6EB

border

#C3C2C6

text

#020006

muted

#78777A

Preview Lab

Preview with #0A0431

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

Preview Lab → · Contrast checker → · Palette generator →