#03143B#03143B

#03143B is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.7% C 0.079 H 262.1°. Best body text is #FFFFFF at 17.99:1 contrast (WCAG AA passes).

Color values

HEX	#03143B
RGB	rgb(3, 20, 59)
HSL	hsl(222, 90%, 12%)
HSV	hsv(222, 95%, 23%)
CMYK	cmyk(94.9%, 66.1%, 0%, 76.9%)
CIE-LAB	lab(7.55, 10.81, -27.20)
CIE-LCH	lch(7.55, 29.27, 291.67°)
OKLab	oklab(20.67% -0.0109 -0.0787)
OKLCH	oklch(20.67% 0.079 262.1)
XYZ	xyz(1.0768, 0.8353, 4.2413)
Luminance	0.0083 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03143B #3B2A03

analogous

#03303B #03143B #0E033B

triadic

#03143B #3B0314 #143B03

tetradic

#03143B #3B0330 #3B2A03 #033B0E

square

#03143B #3B0330 #3B2A03 #033B0E

split-complementary

#03143B #3B0E03 #303B03

monochromatic

#010A1D #010A1D #03143B #062875 #093BAF

Accessibility & contrast

On white

17.99

#03143B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#03143B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03143B

17.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03143B	#FFFFFF	#000000	##FFFFFF
##03143B	1.00	17.99	1.17	17.99
#FFFFFF	17.99	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00193C

Deuteranopia (green-blind)

#00143A

Tritanopia (blue-blind)

#001E25

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #03143b;
/* rgb */ color: rgb(3, 20, 59);
/* oklch */ color: oklch(20.7% 0.079 262.1);

Tailwind

colors: {
  custom: {
    50: '#4f5071',
    500: '#03143b',
    950: '#000000',
  },
}

SCSS

$custom: #03143b;
$custom-light: #4f5071;
$custom-dark: #000000;

JSON

{
  "hex": "#03143b",
  "rgb": {
    "r": 3,
    "g": 20,
    "b": 59
  },
  "hsl": {
    "h": 221.786,
    "s": 90.323,
    "l": 12.157
  },
  "oklch": {
    "l": 0.20674,
    "c": 0.07945,
    "h": 262.1
  },
  "luminance": 0.00835
}

Semantic roles & 50–950 ramp

primary

#03143B

secondary

#7E601C

accent

#BE29FF

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020208

muted

#78787B

Preview Lab

Preview with #03143B

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

Preview Lab → · Contrast checker → · Palette generator →