#103183#103183

#103183 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.9% C 0.143 H 263.8°. Best body text is #FFFFFF at 11.74:1 contrast (WCAG AA passes).

Color values

HEX	#103183
RGB	rgb(16, 49, 131)
HSL	hsl(223, 78%, 29%)
HSV	hsv(223, 88%, 51%)
CMYK	cmyk(87.8%, 62.6%, 0%, 48.6%)
CIE-LAB	lab(23.49, 22.09, -49.18)
CIE-LCH	lch(23.49, 53.91, 294.19°)
OKLab	oklab(34.86% -0.0155 -0.1423)
OKLCH	oklch(34.86% 0.143 263.8)
XYZ	xyz(5.4073, 3.9448, 21.9448)
Luminance	0.0394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103183 #836210

analogous

#106B83 #103183 #291083

triadic

#103183 #831031 #318310

tetradic

#103183 #83106B #836210 #108329

square

#103183 #83106B #836210 #108329

split-complementary

#103183 #832910 #6B8310

monochromatic

#030A1B #091D4C #103183 #1745BA #295FE5

Accessibility & contrast

On white

11.74

#103183 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#103183 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103183

11.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103183	#FFFFFF	#000000	##FFFFFF
##103183	1.00	11.74	1.79	11.74
#FFFFFF	11.74	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D86

Deuteranopia (green-blind)

#003381

Tritanopia (blue-blind)

#004655

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #103183;
/* rgb */ color: rgb(16, 49, 131);
/* oklch */ color: oklch(34.9% 0.143 263.8);

Tailwind

colors: {
  custom: {
    50: '#6668a8',
    500: '#103183',
    950: '#000000',
  },
}

SCSS

$custom: #103183;
$custom-light: #6668a8;
$custom-dark: #000000;

JSON

{
  "hex": "#103183",
  "rgb": {
    "r": 16,
    "g": 49,
    "b": 131
  },
  "hsl": {
    "h": 222.783,
    "s": 78.231,
    "l": 28.824
  },
  "oklch": {
    "l": 0.34856,
    "c": 0.14319,
    "h": 263.8
  },
  "luminance": 0.03945
}

Semantic roles & 50–950 ramp

primary

#103183

secondary

#B99336

accent

#BD33F5

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #103183

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

Preview Lab → · Contrast checker → · Palette generator →