#00103A#00103A

#00103A is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 19.4% C 0.085 H 261.3°. Best body text is #FFFFFF at 18.50:1 contrast (WCAG AA passes).

Color values

HEX	#00103A
RGB	rgb(0, 16, 58)
HSL	hsl(223, 100%, 11%)
HSV	hsv(223, 100%, 23%)
CMYK	cmyk(100%, 72.4%, 0%, 77.3%)
CIE-LAB	lab(6.11, 12.37, -28.83)
CIE-LCH	lch(6.11, 31.37, 293.23°)
OKLab	oklab(19.38% -0.0129 -0.0845)
OKLCH	oklch(19.38% 0.085 261.3)
XYZ	xyz(0.9487, 0.6759, 4.0826)
Luminance	0.0068 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00103A #3A2A00

analogous

#002D3A #00103A #0D003A

triadic

#00103A #3A0010 #103A00

tetradic

#00103A #3A002D #3A2A00 #003A0D

square

#00103A #3A002D #3A2A00 #003A0D

split-complementary

#00103A #3A0D00 #2D3A00

monochromatic

#00081F #00081F #00103A #002177 #0032B4

Accessibility & contrast

On white

18.50

#00103A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#00103A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #00103A

18.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00103A	#FFFFFF	#000000	##FFFFFF
##00103A	1.00	18.50	1.14	18.50
#FFFFFF	18.50	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00163B

Deuteranopia (green-blind)

#001139

Tritanopia (blue-blind)

#001B23

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #00103a;
/* rgb */ color: rgb(0, 16, 58);
/* oklch */ color: oklch(19.4% 0.085 261.3);

Tailwind

colors: {
  custom: {
    50: '#4d4e71',
    500: '#00103a',
    950: '#000000',
  },
}

SCSS

$custom: #00103a;
$custom-light: #4d4e71;
$custom-dark: #000000;

JSON

{
  "hex": "#00103a",
  "rgb": {
    "r": 0,
    "g": 16,
    "b": 58
  },
  "hsl": {
    "h": 223.448,
    "s": 100,
    "l": 11.373
  },
  "oklch": {
    "l": 0.19384,
    "c": 0.08544,
    "h": 261.3
  },
  "luminance": 0.00676
}

Semantic roles & 50–950 ramp

primary

#00103A

secondary

#7F6216

accent

#C429FF

background

#F4F4F6

surface

#E7E7EC

border

#C3C3C7

text

#020107

muted

#78777A

Preview Lab

Preview with #00103A

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

Preview Lab → · Contrast checker → · Palette generator →