#103B7E#103B7E

#103B7E is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.6% C 0.123 H 259.5°. Best body text is #FFFFFF at 10.78:1 contrast (WCAG AA passes).

Color values

HEX	#103B7E
RGB	rgb(16, 59, 126)
HSL	hsl(217, 77%, 28%)
HSV	hsv(217, 87%, 49%)
CMYK	cmyk(87.3%, 53.2%, 0%, 50.6%)
CIE-LAB	lab(25.99, 12.89, -41.96)
CIE-LCH	lch(25.99, 43.90, 287.07°)
OKLab	oklab(36.62% -0.0224 -0.121)
OKLCH	oklch(36.62% 0.123 259.5)
XYZ	xyz(5.5422, 4.7438, 20.3582)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#103B7E #7E5310

analogous

#10727E #103B7E #1C107E

triadic

#103B7E #7E103B #3B7E10

tetradic

#103B7E #7E1072 #7E5310 #107E1C

square

#103B7E #7E1072 #7E5310 #107E1C

split-complementary

#103B7E #7E1C10 #727E10

monochromatic

#030D1B #092248 #103B7E #1754B4 #256FE3

Accessibility & contrast

On white

10.78

#103B7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#103B7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #103B7E

10.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##103B7E	#FFFFFF	#000000	##FFFFFF
##103B7E	1.00	10.78	1.95	10.78
#FFFFFF	10.78	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D4380

Deuteranopia (green-blind)

#00397D

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #103b7e;
/* rgb */ color: rgb(16, 59, 126);
/* oklch */ color: oklch(36.6% 0.123 259.5);

Tailwind

colors: {
  custom: {
    50: '#6470a4',
    500: '#103b7e',
    950: '#000000',
  },
}

SCSS

$custom: #103b7e;
$custom-light: #6470a4;
$custom-dark: #000000;

JSON

{
  "hex": "#103b7e",
  "rgb": {
    "r": 16,
    "g": 59,
    "b": 126
  },
  "hsl": {
    "h": 216.545,
    "s": 77.465,
    "l": 27.843
  },
  "oklch": {
    "l": 0.36619,
    "c": 0.12302,
    "h": 259.5
  },
  "luminance": 0.04744
}

Semantic roles & 50–950 ramp

primary

#103B7E

secondary

#B48336

accent

#A934F4

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #103B7E

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

Preview Lab → · Contrast checker → · Palette generator →