#0A0A2F#0A0A2F

#0A0A2F is a very dark, moderate blue. Relative luminance 0.005; OKLCH L 17.6% C 0.072 H 276.1°. Best body text is #FFFFFF at 19.14:1 contrast (WCAG AA passes).

Color values

HEX	#0A0A2F
RGB	rgb(10, 10, 47)
HSL	hsl(240, 65%, 11%)
HSV	hsv(240, 79%, 18%)
CMYK	cmyk(78.7%, 78.7%, 0%, 81.6%)
CIE-LAB	lab(4.40, 11.63, -23.46)
CIE-LCH	lch(4.40, 26.19, 296.36°)
OKLab	oklab(17.55% 0.0076 -0.0713)
OKLCH	oklch(17.55% 0.072 276.1)
XYZ	xyz(0.7466, 0.4868, 2.7434)
Luminance	0.0049 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A0A2F #2F2F0A

analogous

#0A1C2F #0A0A2F #1C0A2F

triadic

#0A0A2F #2F0A0A #0A2F0A

tetradic

#0A0A2F #2F0A1C #2F2F0A #0A2F1C

square

#0A0A2F #2F0A1C #2F2F0A #0A2F1C

split-complementary

#0A0A2F #2F1C0A #1C2F0A

monochromatic

#050519 #050519 #0A0A2F #151561 #1F1F94

Accessibility & contrast

On white

19.14

#0A0A2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#0A0A2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A0A2F

19.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A0A2F	#FFFFFF	#000000	##FFFFFF
##0A0A2F	1.00	19.14	1.10	19.14
#FFFFFF	19.14	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001130

Deuteranopia (green-blind)

#000E2E

Tritanopia (blue-blind)

#00141B

Achromatopsia (no color)

#0F0F0F

Design tokens & code

CSS

--color: #0a0a2f;
/* rgb */ color: rgb(10, 10, 47);
/* oklch */ color: oklch(17.6% 0.072 276.1);

Tailwind

colors: {
  custom: {
    50: '#4d4b68',
    500: '#0a0a2f',
    950: '#000000',
  },
}

SCSS

$custom: #0a0a2f;
$custom-light: #4d4b68;
$custom-dark: #000000;

JSON

{
  "hex": "#0a0a2f",
  "rgb": {
    "r": 10,
    "g": 10,
    "b": 47
  },
  "hsl": {
    "h": 240,
    "s": 64.912,
    "l": 11.176
  },
  "oklch": {
    "l": 0.17552,
    "c": 0.07174,
    "h": 276.1
  },
  "luminance": 0.00487
}

Semantic roles & 50–950 ramp

primary

#0A0A2F

secondary

#6C6C29

accent

#E840E8

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020106

muted

#78777A

Preview Lab

Preview with #0A0A2F

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

Preview Lab → · Contrast checker → · Palette generator →