#13387B#13387B

#13387B is a dark, vivid blue. Relative luminance 0.044; OKLCH L 35.8% C 0.122 H 261.1°. Best body text is #FFFFFF at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#13387B
RGB	rgb(19, 56, 123)
HSL	hsl(219, 73%, 28%)
HSV	hsv(219, 85%, 48%)
CMYK	cmyk(84.6%, 54.5%, 0%, 51.8%)
CIE-LAB	lab(24.94, 14.03, -41.77)
CIE-LCH	lch(24.94, 44.07, 288.57°)
OKLab	oklab(35.77% -0.0188 -0.1204)
OKLCH	oklch(35.77% 0.122 261.1)
XYZ	xyz(5.2566, 4.3962, 19.3066)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#13387B #7B5613

analogous

#136C7B #13387B #22137B

triadic

#13387B #7B1338 #387B13

tetradic

#13387B #7B136C #7B5613 #137B22

square

#13387B #7B136C #7B5613 #137B22

split-complementary

#13387B #7B2213 #6C7B13

monochromatic

#040C1B #0B2046 #13387B #1B50B0 #2A6ADE

Accessibility & contrast

On white

11.17

#13387B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#13387B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #13387B

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##13387B	#FFFFFF	#000000	##FFFFFF
##13387B	1.00	11.17	1.88	11.17
#FFFFFF	11.17	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07407D

Deuteranopia (green-blind)

#00377A

Tritanopia (blue-blind)

#004853

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #13387b;
/* rgb */ color: rgb(19, 56, 123);
/* oklch */ color: oklch(35.8% 0.122 261.1);

Tailwind

colors: {
  custom: {
    50: '#646ea2',
    500: '#13387b',
    950: '#000000',
  },
}

SCSS

$custom: #13387b;
$custom-light: #646ea2;
$custom-dark: #000000;

JSON

{
  "hex": "#13387b",
  "rgb": {
    "r": 19,
    "g": 56,
    "b": 123
  },
  "hsl": {
    "h": 218.654,
    "s": 73.239,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35767,
    "c": 0.12188,
    "h": 261.1
  },
  "luminance": 0.04397
}

Semantic roles & 50–950 ramp

primary

#13387B

secondary

#B18639

accent

#AE38F0

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #13387B

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

Preview Lab → · Contrast checker → · Palette generator →