#05033B#05033B

#05033B is a very dark, moderate blue. Relative luminance 0.004; OKLCH L 17.2% C 0.102 H 270.5°. Best body text is #FFFFFF at 19.40:1 contrast (WCAG AA passes).

Color values

HEX	#05033B
RGB	rgb(5, 3, 59)
HSL	hsl(242, 90%, 12%)
HSV	hsv(242, 95%, 23%)
CMYK	cmyk(91.5%, 94.9%, 0%, 76.9%)
CIE-LAB	lab(3.73, 20.11, -33.39)
CIE-LCH	lch(3.73, 38.98, 301.06°)
OKLab	oklab(17.16% 0.0009 -0.1022)
OKLCH	oklch(17.16% 0.102 270.5)
XYZ	xyz(0.8843, 0.4131, 4.1699)
Luminance	0.0041 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05033B #393B03

analogous

#031D3B #05033B #21033B

triadic

#05033B #3B0503 #033B05

tetradic

#05033B #3B031D #393B03 #033B21

square

#05033B #3B031D #393B03 #033B21

split-complementary

#05033B #3B2103 #1D3B03

monochromatic

#02011D #02011D #05033B #0A0675 #0F09AF

Accessibility & contrast

On white

19.40

#05033B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#05033B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05033B

19.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05033B	#FFFFFF	#000000	##FFFFFF
##05033B	1.00	19.40	1.08	19.40
#FFFFFF	19.40	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00103D

Deuteranopia (green-blind)

#000A3A

Tritanopia (blue-blind)

#00141F

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #05033b;
/* rgb */ color: rgb(5, 3, 59);
/* oklch */ color: oklch(17.2% 0.102 270.5);

Tailwind

colors: {
  custom: {
    50: '#4f4772',
    500: '#05033b',
    950: '#000000',
  },
}

SCSS

$custom: #05033b;
$custom-light: #4f4772;
$custom-dark: #000000;

JSON

{
  "hex": "#05033b",
  "rgb": {
    "r": 5,
    "g": 3,
    "b": 59
  },
  "hsl": {
    "h": 242.143,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.17155,
    "c": 0.10219,
    "h": 270.5
  },
  "luminance": 0.00413
}

Semantic roles & 50–950 ramp

primary

#05033B

secondary

#7A7E1C

accent

#FF29F7

background

#F4F3F6

surface

#E7E5EC

border

#C3C1C7

text

#020008

muted

#78777B

Preview Lab

Preview with #05033B

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

Preview Lab → · Contrast checker → · Palette generator →