#03143F#03143F

#03143F is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.1% C 0.086 H 262.9°. Best body text is #FFFFFF at 17.86:1 contrast (WCAG AA passes).

Color values

HEX	#03143F
RGB	rgb(3, 20, 63)
HSL	hsl(223, 91%, 13%)
HSV	hsv(223, 95%, 25%)
CMYK	cmyk(95.2%, 68.3%, 0%, 75.3%)
CIE-LAB	lab(7.93, 12.76, -29.43)
CIE-LCH	lch(7.93, 32.08, 293.44°)
OKLab	oklab(21.1% -0.0106 -0.0852)
OKLCH	oklch(21.1% 0.086 262.9)
XYZ	xyz(1.1846, 0.8784, 4.8088)
Luminance	0.0088 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 3.98

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03143F #3F2E03

analogous

#03323F #03143F #10033F

triadic

#03143F #3F0314 #143F03

tetradic

#03143F #3F0332 #3F2E03 #033F10

square

#03143F #3F0332 #3F2E03 #033F10

split-complementary

#03143F #3F1003 #323F03

monochromatic

#01091D #01091D #03143F #062779 #0939B4

Accessibility & contrast

On white

17.86

#03143F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#03143F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03143F

17.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03143F	#FFFFFF	#000000	##FFFFFF
##03143F	1.00	17.86	1.18	17.86
#FFFFFF	17.86	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A40

Deuteranopia (green-blind)

#00153E

Tritanopia (blue-blind)

#001F27

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #03143f;
/* rgb */ color: rgb(3, 20, 63);
/* oklch */ color: oklch(21.1% 0.086 262.9);

Tailwind

colors: {
  custom: {
    50: '#505074',
    500: '#03143f',
    950: '#000000',
  },
}

SCSS

$custom: #03143f;
$custom-light: #505074;
$custom-dark: #000000;

JSON

{
  "hex": "#03143f",
  "rgb": {
    "r": 3,
    "g": 20,
    "b": 63
  },
  "hsl": {
    "h": 223,
    "s": 90.909,
    "l": 12.941
  },
  "oklch": {
    "l": 0.21097,
    "c": 0.08584,
    "h": 262.9
  },
  "luminance": 0.00879
}

Semantic roles & 50–950 ramp

primary

#03143F

secondary

#81651D

accent

#C229FF

background

#F4F4F7

surface

#E7E7ED

border

#C3C3C8

text

#020208

muted

#78787B

Preview Lab

Preview with #03143F

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

Preview Lab → · Contrast checker → · Palette generator →