#13397B#13397B

#13397B is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.0% C 0.121 H 260.7°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#13397B
RGB	rgb(19, 57, 123)
HSL	hsl(218, 73%, 28%)
HSV	hsv(218, 85%, 48%)
CMYK	cmyk(84.6%, 53.7%, 0%, 51.8%)
CIE-LAB	lab(25.24, 13.32, -41.28)
CIE-LCH	lch(25.24, 43.38, 287.88°)
OKLab	oklab(36% -0.0196 -0.119)
OKLCH	oklch(36% 0.121 260.7)
XYZ	xyz(5.3055, 4.4941, 19.3229)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#13397B #7B5513

analogous

#136D7B #13397B #21137B

triadic

#13397B #7B1339 #397B13

tetradic

#13397B #7B136D #7B5513 #137B21

square

#13397B #7B136D #7B5513 #137B21

split-complementary

#13397B #7B2113 #6D7B13

monochromatic

#040C1B #0B2046 #13397B #1B52B0 #2A6CDE

Accessibility & contrast

On white

11.06

#13397B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#13397B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #13397B

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##13397B	#FFFFFF	#000000	##FFFFFF
##13397B	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B417D

Deuteranopia (green-blind)

#00377A

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #13397b;
/* rgb */ color: rgb(19, 57, 123);
/* oklch */ color: oklch(36.0% 0.121 260.7);

Tailwind

colors: {
  custom: {
    50: '#646ea2',
    500: '#13397b',
    950: '#000000',
  },
}

SCSS

$custom: #13397b;
$custom-light: #646ea2;
$custom-dark: #000000;

JSON

{
  "hex": "#13397b",
  "rgb": {
    "r": 19,
    "g": 57,
    "b": 123
  },
  "hsl": {
    "h": 218.077,
    "s": 73.239,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35997,
    "c": 0.12056,
    "h": 260.7
  },
  "luminance": 0.04495
}

Semantic roles & 50–950 ramp

primary

#13397B

secondary

#B18539

accent

#AD38F0

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #13397B

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

Preview Lab → · Contrast checker → · Palette generator →