#103579#103579

#103579 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 34.8% C 0.124 H 261.3°. Best body text is #FFFFFF at 11.62:1 contrast (WCAG AA passes).

Color values

HEX	#103579
RGB	rgb(16, 53, 121)
HSL	hsl(219, 77%, 27%)
HSV	hsv(219, 87%, 47%)
CMYK	cmyk(86.8%, 56.2%, 0%, 52.5%)
CIE-LAB	lab(23.79, 15.04, -42.38)
CIE-LCH	lch(23.79, 44.97, 289.54°)
OKLab	oklab(34.82% -0.0187 -0.1223)
OKLCH	oklch(34.82% 0.124 261.3)
XYZ	xyz(4.9367, 4.0362, 18.6043)
Luminance	0.0404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103579 #795410

analogous

#106A79 #103579 #201079

triadic

#103579 #791035 #357910

tetradic

#103579 #79106A #795410 #107920

square

#103579 #79106A #795410 #107920

split-complementary

#103579 #792010 #6A7910

monochromatic

#040C1B #091D43 #103579 #174DAF #2265E2

Accessibility & contrast

On white

11.62

#103579 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#103579 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103579

11.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103579	#FFFFFF	#000000	##FFFFFF
##103579	1.00	11.62	1.81	11.62
#FFFFFF	11.62	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7B

Deuteranopia (green-blind)

#003478

Tritanopia (blue-blind)

#004651

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #103579;
/* rgb */ color: rgb(16, 53, 121);
/* oklch */ color: oklch(34.8% 0.124 261.3);

Tailwind

colors: {
  custom: {
    50: '#636ba0',
    500: '#103579',
    950: '#000000',
  },
}

SCSS

$custom: #103579;
$custom-light: #636ba0;
$custom-dark: #000000;

JSON

{
  "hex": "#103579",
  "rgb": {
    "r": 16,
    "g": 53,
    "b": 121
  },
  "hsl": {
    "h": 218.857,
    "s": 76.642,
    "l": 26.863
  },
  "oklch": {
    "l": 0.34817,
    "c": 0.12372,
    "h": 261.3
  },
  "luminance": 0.04037
}

Semantic roles & 50–950 ramp

primary

#103579

secondary

#B08535

accent

#B035F3

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060F

muted

#7A7A7E

Preview Lab

Preview with #103579

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

Preview Lab → · Contrast checker → · Palette generator →