#0A0436#0A0436

#0A0436 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 17.1% C 0.092 H 277.2°. Best body text is #FFFFFF at 19.38:1 contrast (WCAG AA passes).

Color values

HEX	#0A0436
RGB	rgb(10, 4, 54)
HSL	hsl(247, 86%, 11%)
HSV	hsv(247, 93%, 21%)
CMYK	cmyk(81.5%, 92.6%, 0%, 78.8%)
CIE-LAB	lab(3.77, 17.91, -29.66)
CIE-LCH	lch(3.77, 34.65, 301.13°)
OKLab	oklab(17.12% 0.0115 -0.0911)
OKLCH	oklch(17.12% 0.092 277.2)
XYZ	xyz(0.8342, 0.4176, 3.5260)
Luminance	0.0042 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0436 #303604

analogous

#041736 #0A0436 #230436

triadic

#0A0436 #360A04 #04360A

tetradic

#0A0436 #360417 #303604 #043623

square

#0A0436 #360417 #303604 #043623

split-complementary

#0A0436 #362304 #173604

monochromatic

#05021C #05021C #0A0436 #15086F #1F0CA8

Accessibility & contrast

On white

19.38

#0A0436 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#0A0436 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0436

19.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0436	#FFFFFF	#000000	##FFFFFF
##0A0436	1.00	19.38	1.08	19.38
#FFFFFF	19.38	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000F37

Deuteranopia (green-blind)

#000B35

Tritanopia (blue-blind)

#00131D

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #0a0436;
/* rgb */ color: rgb(10, 4, 54);
/* oklch */ color: oklch(17.1% 0.092 277.2);

Tailwind

colors: {
  custom: {
    50: '#50486d',
    500: '#0a0436',
    950: '#000000',
  },
}

SCSS

$custom: #0a0436;
$custom-light: #50486d;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0436",
  "rgb": {
    "r": 10,
    "g": 4,
    "b": 54
  },
  "hsl": {
    "h": 247.2,
    "s": 86.207,
    "l": 11.373
  },
  "oklch": {
    "l": 0.17117,
    "c": 0.09186,
    "h": 277.2
  },
  "luminance": 0.00418
}

Semantic roles & 50–950 ramp

primary

#0A0436

secondary

#6D781E

accent

#FC2BE3

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020007

muted

#78777A

Preview Lab

Preview with #0A0436

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

Preview Lab → · Contrast checker → · Palette generator →