#05102D#05102D

#05102D is a very dark, moderate blue. Relative luminance 0.006; OKLCH L 18.4% C 0.061 H 264.3°. Best body text is #FFFFFF at 18.78:1 contrast (WCAG AA passes).

Color values

HEX	#05102D
RGB	rgb(5, 16, 45)
HSL	hsl(224, 80%, 10%)
HSV	hsv(224, 89%, 18%)
CMYK	cmyk(88.9%, 64.4%, 0%, 82.4%)
CIE-LAB	lab(5.35, 6.49, -20.47)
CIE-LCH	lch(5.35, 21.48, 287.60°)
OKLab	oklab(18.37% -0.0061 -0.0607)
OKLCH	oklch(18.37% 0.061 264.3)
XYZ	xyz(0.7214, 0.5922, 2.5584)
Luminance	0.0059 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.12

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05102D #2D2205

analogous

#05242D #05102D #0E052D

triadic

#05102D #2D0510 #102D05

tetradic

#05102D #2D0524 #2D2205 #052D0E

square

#05102D #2D0524 #2D2205 #052D0E

split-complementary

#05102D #2D0E05 #242D05

monochromatic

#030A1C #030A1C #05102D #0B2464 #11379B

Accessibility & contrast

On white

18.78

#05102D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.12

#05102D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05102D

18.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05102D	#FFFFFF	#000000	##FFFFFF
##05102D	1.00	18.78	1.12	18.78
#FFFFFF	18.78	1.00	21.00	1.00
#000000	1.12	21.00	1.00	21.00
##FFFFFF	18.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#01142E

Deuteranopia (green-blind)

#00102C

Tritanopia (blue-blind)

#00171C

Achromatopsia (no color)

#121212

Design tokens & code

CSS

--color: #05102d;
/* rgb */ color: rgb(5, 16, 45);
/* oklch */ color: oklch(18.4% 0.061 264.3);

Tailwind

colors: {
  custom: {
    50: '#4a4e66',
    500: '#05102d',
    950: '#000000',
  },
}

SCSS

$custom: #05102d;
$custom-light: #4a4e66;
$custom-dark: #000000;

JSON

{
  "hex": "#05102d",
  "rgb": {
    "r": 5,
    "g": 16,
    "b": 45
  },
  "hsl": {
    "h": 223.5,
    "s": 80,
    "l": 9.804
  },
  "oklch": {
    "l": 0.18369,
    "c": 0.06105,
    "h": 264.3
  },
  "luminance": 0.00592
}

Semantic roles & 50–950 ramp

primary

#05102D

secondary

#6F591F

accent

#C031F6

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010106

muted

#77777A

Preview Lab

Preview with #05102D

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

Preview Lab → · Contrast checker → · Palette generator →