#103A9A#103A9A

#103A9A is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.9% C 0.163 H 263.1°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#103A9A
RGB	rgb(16, 58, 154)
HSL	hsl(222, 81%, 33%)
HSV	hsv(222, 90%, 60%)
CMYK	cmyk(89.6%, 62.3%, 0%, 39.6%)
CIE-LAB	lab(28.03, 25.22, -55.97)
CIE-LCH	lch(28.03, 61.39, 294.26°)
OKLab	oklab(38.88% -0.0196 -0.1621)
OKLCH	oklch(38.88% 0.163 263.1)
XYZ	xyz(7.5574, 5.4684, 31.2228)
Luminance	0.0547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103A9A #9A7010

analogous

#107F9A #103A9A #2B109A

triadic

#103A9A #9A103A #3A9A10

tetradic

#103A9A #9A107F #9A7010 #109A2B

square

#103A9A #9A107F #9A7010 #109A2B

split-complementary

#103A9A #9A2B10 #7F9A10

monochromatic

#04102B #0A2563 #103A9A #164FD1 #3A70EB

Accessibility & contrast

On white

10.03

#103A9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#103A9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103A9A

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103A9A	#FFFFFF	#000000	##FFFFFF
##103A9A	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499D

Deuteranopia (green-blind)

#003C98

Tritanopia (blue-blind)

#005364

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #103a9a;
/* rgb */ color: rgb(16, 58, 154);
/* oklch */ color: oklch(38.9% 0.163 263.1);

Tailwind

colors: {
  custom: {
    50: '#6c6fb9',
    500: '#103a9a',
    950: '#000000',
  },
}

SCSS

$custom: #103a9a;
$custom-light: #6c6fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#103a9a",
  "rgb": {
    "r": 16,
    "g": 58,
    "b": 154
  },
  "hsl": {
    "h": 221.739,
    "s": 81.176,
    "l": 33.333
  },
  "oklch": {
    "l": 0.38884,
    "c": 0.16329,
    "h": 263.1
  },
  "luminance": 0.05469
}

Semantic roles & 50–950 ramp

primary

#103A9A

secondary

#C99E3C

accent

#BB30F8

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #103A9A

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

Preview Lab → · Contrast checker → · Palette generator →