#103381#103381

#103381 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.1% C 0.138 H 263.0°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#103381
RGB	rgb(16, 51, 129)
HSL	hsl(221, 78%, 28%)
HSV	hsv(221, 88%, 51%)
CMYK	cmyk(87.6%, 60.5%, 0%, 49.4%)
CIE-LAB	lab(23.88, 19.84, -47.29)
CIE-LCH	lch(23.88, 51.28, 292.76°)
OKLab	oklab(35.09% -0.0167 -0.1368)
OKLCH	oklch(35.09% 0.138 263)
XYZ	xyz(5.3585, 4.0621, 21.2663)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103381 #815E10

analogous

#106B81 #103381 #251081

triadic

#103381 #811033 #338110

tetradic

#103381 #81106B #815E10 #108125

square

#103381 #81106B #815E10 #108125

split-complementary

#103381 #812510 #6B8110

monochromatic

#030B1B #091D4B #103381 #1749B7 #2762E4

Accessibility & contrast

On white

11.59

#103381 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#103381 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103381

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103381	#FFFFFF	#000000	##FFFFFF
##103381	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E84

Deuteranopia (green-blind)

#003480

Tritanopia (blue-blind)

#004754

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #103381;
/* rgb */ color: rgb(16, 51, 129);
/* oklch */ color: oklch(35.1% 0.138 263.0);

Tailwind

colors: {
  custom: {
    50: '#666aa6',
    500: '#103381',
    950: '#000000',
  },
}

SCSS

$custom: #103381;
$custom-light: #666aa6;
$custom-dark: #000000;

JSON

{
  "hex": "#103381",
  "rgb": {
    "r": 16,
    "g": 51,
    "b": 129
  },
  "hsl": {
    "h": 221.416,
    "s": 77.931,
    "l": 28.431
  },
  "oklch": {
    "l": 0.35091,
    "c": 0.13779,
    "h": 263
  },
  "luminance": 0.04063
}

Semantic roles & 50–950 ramp

primary

#103381

secondary

#B78F36

accent

#B933F4

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #103381

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

Preview Lab → · Contrast checker → · Palette generator →