#103B9F#103B9F

#103B9F is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.6% C 0.169 H 263.2°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#103B9F
RGB	rgb(16, 59, 159)
HSL	hsl(222, 82%, 34%)
HSV	hsv(222, 90%, 62%)
CMYK	cmyk(89.9%, 62.9%, 0%, 37.6%)
CIE-LAB	lab(28.75, 26.55, -57.84)
CIE-LCH	lch(28.75, 63.64, 294.66°)
OKLab	oklab(39.56% -0.0199 -0.1676)
OKLCH	oklch(39.56% 0.169 263.2)
XYZ	xyz(8.0334, 5.7403, 33.4787)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103B9F #9F7410

analogous

#10839F #103B9F #2D109F

triadic

#103B9F #9F103B #3B9F10

tetradic

#103B9F #9F1083 #9F7410 #109F2D

square

#103B9F #9F1083 #9F7410 #109F2D

split-complementary

#103B9F #9F2D10 #839F10

monochromatic

#051230 #0A2667 #103B9F #1650D7 #3E72EC

Accessibility & contrast

On white

9.78

#103B9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#103B9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103B9F

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103B9F	#FFFFFF	#000000	##FFFFFF
##103B9F	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA2

Deuteranopia (green-blind)

#003D9D

Tritanopia (blue-blind)

#005567

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #103b9f;
/* rgb */ color: rgb(16, 59, 159);
/* oklch */ color: oklch(39.6% 0.169 263.2);

Tailwind

colors: {
  custom: {
    50: '#6e70bc',
    500: '#103b9f',
    950: '#000000',
  },
}

SCSS

$custom: #103b9f;
$custom-light: #6e70bc;
$custom-dark: #000000;

JSON

{
  "hex": "#103b9f",
  "rgb": {
    "r": 16,
    "g": 59,
    "b": 159
  },
  "hsl": {
    "h": 221.958,
    "s": 81.714,
    "l": 34.314
  },
  "oklch": {
    "l": 0.39557,
    "c": 0.16874,
    "h": 263.2
  },
  "luminance": 0.05741
}

Semantic roles & 50–950 ramp

primary

#103B9F

secondary

#CBA140

accent

#BC30F8

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #103B9F

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

Preview Lab → · Contrast checker → · Palette generator →