#103A83#103A83

#103A83 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 36.8% C 0.131 H 260.8°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#103A83
RGB	rgb(16, 58, 131)
HSL	hsl(218, 78%, 29%)
HSV	hsv(218, 88%, 51%)
CMYK	cmyk(87.8%, 55.7%, 0%, 48.6%)
CIE-LAB	lab(26.08, 15.71, -44.95)
CIE-LCH	lch(26.08, 47.62, 289.27°)
OKLab	oklab(36.81% -0.0211 -0.1298)
OKLCH	oklch(36.81% 0.131 260.8)
XYZ	xyz(5.8220, 4.7742, 22.0830)
Luminance	0.0478 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103A83 #835910

analogous

#107483 #103A83 #201083

triadic

#103A83 #83103A #3A8310

tetradic

#103A83 #831074 #835910 #108320

square

#103A83 #831074 #835910 #108320

split-complementary

#103A83 #832010 #748310

monochromatic

#030C1B #09224C #103A83 #1752BA #296DE5

Accessibility & contrast

On white

10.74

#103A83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#103A83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103A83

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103A83	#FFFFFF	#000000	##FFFFFF
##103A83	1.00	10.74	1.96	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004386

Deuteranopia (green-blind)

#003982

Tritanopia (blue-blind)

#004C58

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #103a83;
/* rgb */ color: rgb(16, 58, 131);
/* oklch */ color: oklch(36.8% 0.131 260.8);

Tailwind

colors: {
  custom: {
    50: '#666fa8',
    500: '#103a83',
    950: '#000000',
  },
}

SCSS

$custom: #103a83;
$custom-light: #666fa8;
$custom-dark: #000000;

JSON

{
  "hex": "#103a83",
  "rgb": {
    "r": 16,
    "g": 58,
    "b": 131
  },
  "hsl": {
    "h": 218.087,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.3681,
    "c": 0.13148,
    "h": 260.8
  },
  "luminance": 0.04775
}

Semantic roles & 50–950 ramp

primary

#103A83

secondary

#B98936

accent

#AE33F5

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #103A83

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

Preview Lab → · Contrast checker → · Palette generator →