#05122B#05122B

#05122B is a very dark, muted blue. Relative luminance 0.006; OKLCH L 18.7% C 0.054 H 260.9°. Best body text is #FFFFFF at 18.62:1 contrast (WCAG AA passes).

Color values

HEX	#05122B
RGB	rgb(5, 18, 43)
HSL	hsl(219, 79%, 9%)
HSV	hsv(219, 88%, 17%)
CMYK	cmyk(88.4%, 58.1%, 0%, 83.1%)
CIE-LAB	lab(5.77, 4.39, -18.31)
CIE-LCH	lch(5.77, 18.83, 283.50°)
OKLab	oklab(18.73% -0.0086 -0.0537)
OKLCH	oklch(18.73% 0.054 260.9)
XYZ	xyz(0.7148, 0.6392, 2.3707)
Luminance	0.0064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.51

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05122B #2B1E05

analogous

#05252B #05122B #0B052B

triadic

#05122B #2B0512 #122B05

tetradic

#05122B #2B0525 #2B1E05 #052B0B

square

#05122B #2B0525 #2B1E05 #052B0B

split-complementary

#05122B #2B0B05 #252B05

monochromatic

#030B1B #030B1B #05122B #0B2962 #124099

Accessibility & contrast

On white

18.62

#05122B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.13

#05122B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05122B

18.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05122B	#FFFFFF	#000000	##FFFFFF
##05122B	1.00	18.62	1.13	18.62
#FFFFFF	18.62	1.00	21.00	1.00
#000000	1.13	21.00	1.00	21.00
##FFFFFF	18.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05152C

Deuteranopia (green-blind)

#01112A

Tritanopia (blue-blind)

#00181C

Achromatopsia (no color)

#131313

Design tokens & code

CSS

--color: #05122b;
/* rgb */ color: rgb(5, 18, 43);
/* oklch */ color: oklch(18.7% 0.054 260.9);

Tailwind

colors: {
  custom: {
    50: '#4a4f64',
    500: '#05122b',
    950: '#000000',
  },
}

SCSS

$custom: #05122b;
$custom-light: #4a4f64;
$custom-dark: #000000;

JSON

{
  "hex": "#05122b",
  "rgb": {
    "r": 5,
    "g": 18,
    "b": 43
  },
  "hsl": {
    "h": 219.474,
    "s": 79.167,
    "l": 9.412
  },
  "oklch": {
    "l": 0.18726,
    "c": 0.05441,
    "h": 260.9
  },
  "luminance": 0.00639
}

Semantic roles & 50–950 ramp

primary

#05122B

secondary

#6D521F

accent

#B332F6

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#010205

muted

#77787A

Preview Lab

Preview with #05122B

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

Preview Lab → · Contrast checker → · Palette generator →