#05102A#05102A

#05102A is a very dark, muted blue. Relative luminance 0.006; OKLCH L 18.1% C 0.056 H 263.3°. Best body text is #FFFFFF at 18.85:1 contrast (WCAG AA passes).

Color values

HEX	#05102A
RGB	rgb(5, 16, 42)
HSL	hsl(222, 79%, 9%)
HSV	hsv(222, 88%, 16%)
CMYK	cmyk(88.1%, 61.9%, 0%, 83.5%)
CIE-LAB	lab(5.15, 5.08, -18.54)
CIE-LCH	lch(5.15, 19.23, 285.31°)
OKLab	oklab(18.08% -0.0065 -0.0554)
OKLCH	oklch(18.08% 0.056 263.3)
XYZ	xyz(0.6656, 0.5699, 2.2650)
Luminance	0.0057 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.14

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05102A #2A1F05

analogous

#05232A #05102A #0D052A

triadic

#05102A #2A0510 #102A05

tetradic

#05102A #2A0523 #2A1F05 #052A0D

square

#05102A #2A0523 #2A1F05 #052A0D

split-complementary

#05102A #2A0D05 #232A05

monochromatic

#030A1B #030A1B #05102A #0C2561 #123A97

Accessibility & contrast

On white

18.85

#05102A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.11

#05102A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05102A

18.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05102A	#FFFFFF	#000000	##FFFFFF
##05102A	1.00	18.85	1.11	18.85
#FFFFFF	18.85	1.00	21.00	1.00
#000000	1.11	21.00	1.00	21.00
##FFFFFF	18.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03132B

Deuteranopia (green-blind)

#001029

Tritanopia (blue-blind)

#00161A

Achromatopsia (no color)

#111111

Design tokens & code

CSS

--color: #05102a;
/* rgb */ color: rgb(5, 16, 42);
/* oklch */ color: oklch(18.1% 0.056 263.3);

Tailwind

colors: {
  custom: {
    50: '#4a4e63',
    500: '#05102a',
    950: '#000000',
  },
}

SCSS

$custom: #05102a;
$custom-light: #4a4e63;
$custom-dark: #000000;

JSON

{
  "hex": "#05102a",
  "rgb": {
    "r": 5,
    "g": 16,
    "b": 42
  },
  "hsl": {
    "h": 222.162,
    "s": 78.723,
    "l": 9.216
  },
  "oklch": {
    "l": 0.18081,
    "c": 0.05578,
    "h": 263.3
  },
  "luminance": 0.0057
}

Semantic roles & 50–950 ramp

primary

#05102A

secondary

#6C551F

accent

#BB33F5

background

#F4F4F5

surface

#E7E7EA

border

#C3C3C6

text

#010105

muted

#777779

Preview Lab

Preview with #05102A

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

Preview Lab → · Contrast checker → · Palette generator →