#0A0537#0A0537

#0A0537 is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 17.5% C 0.092 H 276.4°. Best body text is #FFFFFF at 19.27:1 contrast (WCAG AA passes).

Color values

HEX	#0A0537
RGB	rgb(10, 5, 55)
HSL	hsl(246, 83%, 12%)
HSV	hsv(246, 91%, 22%)
CMYK	cmyk(81.8%, 90.9%, 0%, 78.4%)
CIE-LAB	lab(4.05, 18.10, -29.94)
CIE-LCH	lch(4.05, 34.99, 301.16°)
OKLab	oklab(17.47% 0.0103 -0.0911)
OKLCH	oklch(17.47% 0.092 276.4)
XYZ	xyz(0.8688, 0.4488, 3.6545)
Luminance	0.0045 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0537 #323705

analogous

#051937 #0A0537 #230537

triadic

#0A0537 #370A05 #05370A

tetradic

#0A0537 #370519 #323705 #053723

square

#0A0537 #370519 #323705 #053723

split-complementary

#0A0537 #372305 #193705

monochromatic

#05031C #05031C #0A0537 #140A6F #1E0FA7

Accessibility & contrast

On white

19.27

#0A0537 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#0A0537 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0537

19.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0537	#FFFFFF	#000000	##FFFFFF
##0A0537	1.00	19.27	1.09	19.27
#FFFFFF	19.27	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001038

Deuteranopia (green-blind)

#000C36

Tritanopia (blue-blind)

#00141E

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #0a0537;
/* rgb */ color: rgb(10, 5, 55);
/* oklch */ color: oklch(17.5% 0.092 276.4);

Tailwind

colors: {
  custom: {
    50: '#50486e',
    500: '#0a0537',
    950: '#000000',
  },
}

SCSS

$custom: #0a0537;
$custom-light: #50486e;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0537",
  "rgb": {
    "r": 10,
    "g": 5,
    "b": 55
  },
  "hsl": {
    "h": 246,
    "s": 83.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.17473,
    "c": 0.09169,
    "h": 276.4
  },
  "luminance": 0.00449
}

Semantic roles & 50–950 ramp

primary

#0A0537

secondary

#6F7820

accent

#FA2EE5

background

#F4F4F6

surface

#E7E6EC

border

#C3C2C7

text

#020007

muted

#78777A

Preview Lab

Preview with #0A0537

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

Preview Lab → · Contrast checker → · Palette generator →