#103781#103781

#103781 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.0% C 0.133 H 261.6°. Best body text is #FFFFFF at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#103781
RGB	rgb(16, 55, 129)
HSL	hsl(219, 78%, 28%)
HSV	hsv(219, 88%, 51%)
CMYK	cmyk(87.6%, 57.4%, 0%, 49.4%)
CIE-LAB	lab(25.04, 17.00, -45.40)
CIE-LCH	lch(25.04, 48.48, 290.53°)
OKLab	oklab(35.97% -0.0193 -0.1311)
OKLCH	oklch(35.97% 0.133 261.6)
XYZ	xyz(5.5409, 4.4268, 21.3270)
Luminance	0.0443 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103781 #815A10

analogous

#106F81 #103781 #211081

triadic

#103781 #811037 #378110

tetradic

#103781 #81106F #815A10 #108121

square

#103781 #81106F #815A10 #108121

split-complementary

#103781 #812110 #6F8110

monochromatic

#030C1B #09204B #103781 #174EB7 #2768E4

Accessibility & contrast

On white

11.14

#103781 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#103781 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103781

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103781	#FFFFFF	#000000	##FFFFFF
##103781	1.00	11.14	1.89	11.14
#FFFFFF	11.14	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004184

Deuteranopia (green-blind)

#003780

Tritanopia (blue-blind)

#004A56

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #103781;
/* rgb */ color: rgb(16, 55, 129);
/* oklch */ color: oklch(36.0% 0.133 261.6);

Tailwind

colors: {
  custom: {
    50: '#656da6',
    500: '#103781',
    950: '#000000',
  },
}

SCSS

$custom: #103781;
$custom-light: #656da6;
$custom-dark: #000000;

JSON

{
  "hex": "#103781",
  "rgb": {
    "r": 16,
    "g": 55,
    "b": 129
  },
  "hsl": {
    "h": 219.292,
    "s": 77.931,
    "l": 28.431
  },
  "oklch": {
    "l": 0.35966,
    "c": 0.13256,
    "h": 261.6
  },
  "luminance": 0.04428
}

Semantic roles & 50–950 ramp

primary

#103781

secondary

#B78A36

accent

#B233F4

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #103781

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

Preview Lab → · Contrast checker → · Palette generator →