#13307B#13307B

#13307B is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.0% C 0.132 H 264.3°. Best body text is #FFFFFF at 12.09:1 contrast (WCAG AA passes).

Color values

HEX	#13307B
RGB	rgb(19, 48, 123)
HSL	hsl(223, 73%, 28%)
HSV	hsv(223, 85%, 48%)
CMYK	cmyk(84.6%, 61%, 0%, 51.8%)
CIE-LAB	lab(22.59, 19.74, -45.59)
CIE-LCH	lch(22.59, 49.69, 293.42°)
OKLab	oklab(33.99% -0.0131 -0.1318)
OKLCH	oklch(33.99% 0.132 264.3)
XYZ	xyz(4.8994, 3.6818, 19.1875)
Luminance	0.0368 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#13307B #7B5E13

analogous

#13647B #13307B #2A137B

triadic

#13307B #7B1330 #307B13

tetradic

#13307B #7B1364 #7B5E13 #137B2A

square

#13307B #7B1364 #7B5E13 #137B2A

split-complementary

#13307B #7B2A13 #647B13

monochromatic

#040A1B #0B1B46 #13307B #1B45B0 #2A5CDE

Accessibility & contrast

On white

12.09

#13307B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#13307B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #13307B

12.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##13307B	#FFFFFF	#000000	##FFFFFF
##13307B	1.00	12.09	1.74	12.09
#FFFFFF	12.09	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B7E

Deuteranopia (green-blind)

#00317A

Tritanopia (blue-blind)

#004350

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #13307b;
/* rgb */ color: rgb(19, 48, 123);
/* oklch */ color: oklch(34.0% 0.132 264.3);

Tailwind

colors: {
  custom: {
    50: '#6567a2',
    500: '#13307b',
    950: '#000000',
  },
}

SCSS

$custom: #13307b;
$custom-light: #6567a2;
$custom-dark: #000000;

JSON

{
  "hex": "#13307b",
  "rgb": {
    "r": 19,
    "g": 48,
    "b": 123
  },
  "hsl": {
    "h": 223.269,
    "s": 73.239,
    "l": 27.843
  },
  "oklch": {
    "l": 0.33991,
    "c": 0.13246,
    "h": 264.3
  },
  "luminance": 0.03682
}

Semantic roles & 50–950 ramp

primary

#13307B

secondary

#B18F39

accent

#BD38F0

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #13307B

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

Preview Lab → · Contrast checker → · Palette generator →