#0A0A45#0A0A45

#0A0A45 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.2% C 0.105 H 271.9°. Best body text is #FFFFFF at 18.39:1 contrast (WCAG AA passes).

Color values

HEX	#0A0A45
RGB	rgb(10, 10, 69)
HSL	hsl(240, 75%, 15%)
HSV	hsv(240, 86%, 27%)
CMYK	cmyk(85.5%, 85.5%, 0%, 72.9%)
CIE-LAB	lab(6.42, 23.15, -36.15)
CIE-LCH	lch(6.42, 42.92, 302.64°)
OKLab	oklab(20.24% 0.0035 -0.1052)
OKLCH	oklch(20.24% 0.105 271.9)
XYZ	xyz(1.3075, 0.7111, 5.6974)
Luminance	0.0071 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0A45 #45450A

analogous

#0A2745 #0A0A45 #270A45

triadic

#0A0A45 #450A0A #0A450A

tetradic

#0A0A45 #450A27 #45450A #0A4527

square

#0A0A45 #450A27 #45450A #0A4527

split-complementary

#0A0A45 #45270A #27450A

monochromatic

#04041B #04041B #0A0A45 #12127A #1919B0

Accessibility & contrast

On white

18.39

#0A0A45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#0A0A45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0A45

18.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0A45	#FFFFFF	#000000	##FFFFFF
##0A0A45	1.00	18.39	1.14	18.39
#FFFFFF	18.39	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001747

Deuteranopia (green-blind)

#001144

Tritanopia (blue-blind)

#001C27

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #0a0a45;
/* rgb */ color: rgb(10, 10, 69);
/* oklch */ color: oklch(20.2% 0.105 271.9);

Tailwind

colors: {
  custom: {
    50: '#564a79',
    500: '#0a0a45',
    950: '#000000',
  },
}

SCSS

$custom: #0a0a45;
$custom-light: #564a79;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0a45",
  "rgb": {
    "r": 10,
    "g": 10,
    "b": 69
  },
  "hsl": {
    "h": 240,
    "s": 74.684,
    "l": 15.49
  },
  "oklch": {
    "l": 0.20243,
    "c": 0.10527,
    "h": 271.9
  },
  "luminance": 0.00711
}

Semantic roles & 50–950 ramp

primary

#0A0A45

secondary

#828229

accent

#F136F1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030109

muted

#78777B

Preview Lab

Preview with #0A0A45

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

Preview Lab → · Contrast checker → · Palette generator →