#03133A#03133A

#03133A is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.3% C 0.079 H 262.6°. Best body text is #FFFFFF at 18.13:1 contrast (WCAG AA passes).

Color values

HEX	#03133A
RGB	rgb(3, 19, 58)
HSL	hsl(223, 90%, 12%)
HSV	hsv(223, 95%, 23%)
CMYK	cmyk(94.8%, 67.2%, 0%, 77.3%)
CIE-LAB	lab(7.14, 11.04, -27.14)
CIE-LCH	lch(7.14, 29.30, 292.14°)
OKLab	oklab(20.32% -0.0103 -0.0787)
OKLCH	oklch(20.32% 0.079 262.6)
XYZ	xyz(1.0339, 0.7905, 4.1003)
Luminance	0.0079 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03133A #3A2A03

analogous

#032F3A #03133A #0E033A

triadic

#03133A #3A0313 #133A03

tetradic

#03133A #3A032F #3A2A03 #033A0E

square

#03133A #3A032F #3A2A03 #033A0E

split-complementary

#03133A #3A0E03 #2F3A03

monochromatic

#020A1D #020A1D #03133A #062674 #0939AE

Accessibility & contrast

On white

18.13

#03133A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#03133A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03133A

18.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03133A	#FFFFFF	#000000	##FFFFFF
##03133A	1.00	18.13	1.16	18.13
#FFFFFF	18.13	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00183B

Deuteranopia (green-blind)

#001339

Tritanopia (blue-blind)

#001D24

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #03133a;
/* rgb */ color: rgb(3, 19, 58);
/* oklch */ color: oklch(20.3% 0.079 262.6);

Tailwind

colors: {
  custom: {
    50: '#4e5070',
    500: '#03133a',
    950: '#000000',
  },
}

SCSS

$custom: #03133a;
$custom-light: #4e5070;
$custom-dark: #000000;

JSON

{
  "hex": "#03133a",
  "rgb": {
    "r": 3,
    "g": 19,
    "b": 58
  },
  "hsl": {
    "h": 222.545,
    "s": 90.164,
    "l": 11.961
  },
  "oklch": {
    "l": 0.2032,
    "c": 0.07933,
    "h": 262.6
  },
  "luminance": 0.00791
}

Semantic roles & 50–950 ramp

primary

#03133A

secondary

#7D611C

accent

#C129FF

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020207

muted

#78787A

Preview Lab

Preview with #03133A

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

Preview Lab → · Contrast checker → · Palette generator →