#03133F#03133F

#03133F is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.9% C 0.087 H 263.4°. Best body text is #FFFFFF at 17.97:1 contrast (WCAG AA passes).

Color values

HEX	#03133F
RGB	rgb(3, 19, 63)
HSL	hsl(224, 91%, 13%)
HSV	hsv(224, 95%, 25%)
CMYK	cmyk(95.2%, 69.8%, 0%, 75.3%)
CIE-LAB	lab(7.62, 13.54, -29.94)
CIE-LCH	lch(7.62, 32.86, 294.34°)
OKLab	oklab(20.86% -0.01 -0.0867)
OKLCH	oklch(20.86% 0.087 263.4)
XYZ	xyz(1.1673, 0.8438, 4.8030)
Luminance	0.0084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03133F #3F2F03

analogous

#03313F #03133F #11033F

triadic

#03133F #3F0313 #133F03

tetradic

#03133F #3F0331 #3F2F03 #033F11

square

#03133F #3F0331 #3F2F03 #033F11

split-complementary

#03133F #3F1103 #313F03

monochromatic

#01091D #01091D #03133F #062579 #0936B4

Accessibility & contrast

On white

17.97

#03133F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#03133F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03133F

17.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03133F	#FFFFFF	#000000	##FFFFFF
##03133F	1.00	17.97	1.17	17.97
#FFFFFF	17.97	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A40

Deuteranopia (green-blind)

#00143E

Tritanopia (blue-blind)

#001E26

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #03133f;
/* rgb */ color: rgb(3, 19, 63);
/* oklch */ color: oklch(20.9% 0.087 263.4);

Tailwind

colors: {
  custom: {
    50: '#505075',
    500: '#03133f',
    950: '#000000',
  },
}

SCSS

$custom: #03133f;
$custom-light: #505075;
$custom-dark: #000000;

JSON

{
  "hex": "#03133f",
  "rgb": {
    "r": 3,
    "g": 19,
    "b": 63
  },
  "hsl": {
    "h": 224,
    "s": 90.909,
    "l": 12.941
  },
  "oklch": {
    "l": 0.20859,
    "c": 0.08731,
    "h": 263.4
  },
  "luminance": 0.00844
}

Semantic roles & 50–950 ramp

primary

#03133F

secondary

#81661D

accent

#C629FF

background

#F4F4F7

surface

#E7E7ED

border

#C3C3C8

text

#020208

muted

#78787B

Preview Lab

Preview with #03133F

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

Preview Lab → · Contrast checker → · Palette generator →