#05123F#05123F

#05123F is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.8% C 0.088 H 265.6°. Best body text is #FFFFFF at 18.03:1 contrast (WCAG AA passes).

Color values

HEX	#05123F
RGB	rgb(5, 18, 63)
HSL	hsl(227, 85%, 13%)
HSV	hsv(227, 92%, 25%)
CMYK	cmyk(92.1%, 71.4%, 0%, 75.3%)
CIE-LAB	lab(7.44, 14.61, -30.23)
CIE-LCH	lch(7.44, 33.58, 295.79°)
OKLab	oklab(20.75% -0.0068 -0.0876)
OKLCH	oklch(20.75% 0.088 265.6)
XYZ	xyz(1.1758, 0.8236, 4.7987)
Luminance	0.0082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05123F #3F3205

analogous

#052F3F #05123F #15053F

triadic

#05123F #3F0512 #123F05

tetradic

#05123F #3F052F #3F3205 #053F15

square

#05123F #3F052F #3F3205 #053F15

split-complementary

#05123F #3F1505 #2F3F05

monochromatic

#02081C #02081C #05123F #092278 #0E32B0

Accessibility & contrast

On white

18.03

#05123F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#05123F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05123F

18.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05123F	#FFFFFF	#000000	##FFFFFF
##05123F	1.00	18.03	1.16	18.03
#FFFFFF	18.03	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001940

Deuteranopia (green-blind)

#00143E

Tritanopia (blue-blind)

#001E26

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #05123f;
/* rgb */ color: rgb(5, 18, 63);
/* oklch */ color: oklch(20.8% 0.088 265.6);

Tailwind

colors: {
  custom: {
    50: '#514f75',
    500: '#05123f',
    950: '#000000',
  },
}

SCSS

$custom: #05123f;
$custom-light: #514f75;
$custom-dark: #000000;

JSON

{
  "hex": "#05123f",
  "rgb": {
    "r": 5,
    "g": 18,
    "b": 63
  },
  "hsl": {
    "h": 226.552,
    "s": 85.294,
    "l": 13.333
  },
  "oklch": {
    "l": 0.20752,
    "c": 0.08785,
    "h": 265.6
  },
  "luminance": 0.00824
}

Semantic roles & 50–950 ramp

primary

#05123F

secondary

#806A20

accent

#CD2CFC

background

#F4F4F7

surface

#E7E7ED

border

#C3C3C8

text

#020108

muted

#78777B

Preview Lab

Preview with #05123F

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

Preview Lab → · Contrast checker → · Palette generator →