#103A7E#103A7E

#103A7E is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.4% C 0.124 H 259.9°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#103A7E
RGB	rgb(16, 58, 126)
HSL	hsl(217, 77%, 28%)
HSV	hsv(217, 87%, 49%)
CMYK	cmyk(87.3%, 54%, 0%, 50.6%)
CIE-LAB	lab(25.69, 13.60, -42.45)
CIE-LCH	lch(25.69, 44.58, 287.76°)
OKLab	oklab(36.39% -0.0217 -0.1224)
OKLCH	oklch(36.39% 0.124 259.9)
XYZ	xyz(5.4913, 4.6419, 20.3412)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103A7E #7E5410

analogous

#10717E #103A7E #1D107E

triadic

#103A7E #7E103A #3A7E10

tetradic

#103A7E #7E1071 #7E5410 #107E1D

square

#103A7E #7E1071 #7E5410 #107E1D

split-complementary

#103A7E #7E1D10 #717E10

monochromatic

#030C1B #092148 #103A7E #1753B4 #256EE3

Accessibility & contrast

On white

10.89

#103A7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#103A7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103A7E

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103A7E	#FFFFFF	#000000	##FFFFFF
##103A7E	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#094280

Deuteranopia (green-blind)

#00387D

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #103a7e;
/* rgb */ color: rgb(16, 58, 126);
/* oklch */ color: oklch(36.4% 0.124 259.9);

Tailwind

colors: {
  custom: {
    50: '#646fa4',
    500: '#103a7e',
    950: '#000000',
  },
}

SCSS

$custom: #103a7e;
$custom-light: #646fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#103a7e",
  "rgb": {
    "r": 16,
    "g": 58,
    "b": 126
  },
  "hsl": {
    "h": 217.091,
    "s": 77.465,
    "l": 27.843
  },
  "oklch": {
    "l": 0.36387,
    "c": 0.12433,
    "h": 259.9
  },
  "luminance": 0.04643
}

Semantic roles & 50–950 ramp

primary

#103A7E

secondary

#B48436

accent

#AB34F4

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #103A7E

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

Preview Lab → · Contrast checker → · Palette generator →