#103C81#103C81

#103C81 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.1% C 0.126 H 259.6°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#103C81
RGB	rgb(16, 60, 129)
HSL	hsl(217, 78%, 28%)
HSV	hsv(217, 88%, 51%)
CMYK	cmyk(87.6%, 53.5%, 0%, 49.4%)
CIE-LAB	lab(26.52, 13.45, -42.99)
CIE-LCH	lch(26.52, 45.04, 287.38°)
OKLab	oklab(37.1% -0.0228 -0.1239)
OKLCH	oklch(37.1% 0.126 259.6)
XYZ	xyz(5.7905, 4.9261, 21.4103)
Luminance	0.0493 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103C81 #815510

analogous

#107481 #103C81 #1C1081

triadic

#103C81 #81103C #3C8110

tetradic

#103C81 #811074 #815510 #10811C

square

#103C81 #811074 #815510 #10811C

split-complementary

#103C81 #811C10 #748110

monochromatic

#030D1B #09234B #103C81 #1755B7 #2771E4

Accessibility & contrast

On white

10.58

#103C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#103C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103C81

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103C81	#FFFFFF	#000000	##FFFFFF
##103C81	1.00	10.58	1.99	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B4483

Deuteranopia (green-blind)

#003A80

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #103c81;
/* rgb */ color: rgb(16, 60, 129);
/* oklch */ color: oklch(37.1% 0.126 259.6);

Tailwind

colors: {
  custom: {
    50: '#6571a6',
    500: '#103c81',
    950: '#000000',
  },
}

SCSS

$custom: #103c81;
$custom-light: #6571a6;
$custom-dark: #000000;

JSON

{
  "hex": "#103c81",
  "rgb": {
    "r": 16,
    "g": 60,
    "b": 129
  },
  "hsl": {
    "h": 216.637,
    "s": 77.931,
    "l": 28.431
  },
  "oklch": {
    "l": 0.37097,
    "c": 0.12601,
    "h": 259.6
  },
  "luminance": 0.04927
}

Semantic roles & 50–950 ramp

primary

#103C81

secondary

#B78536

accent

#A933F4

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #103C81

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

Preview Lab → · Contrast checker → · Palette generator →