#13337C#13337C

#13337C is a dark, vivid blue. Relative luminance 0.040; OKLCH L 34.7% C 0.130 H 263.3°. Best body text is #FFFFFF at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#13337C
RGB	rgb(19, 51, 124)
HSL	hsl(222, 73%, 28%)
HSV	hsv(222, 85%, 49%)
CMYK	cmyk(84.7%, 58.9%, 0%, 51.4%)
CIE-LAB	lab(23.54, 18.02, -44.68)
CIE-LCH	lch(23.54, 48.17, 291.96°)
OKLab	oklab(34.73% -0.0151 -0.1291)
OKLCH	oklch(34.73% 0.13 263.3)
XYZ	xyz(5.0892, 3.9607, 19.5611)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#13337C #7C5C13

analogous

#13677C #13337C #27137C

triadic

#13337C #7C1333 #337C13

tetradic

#13337C #7C1367 #7C5C13 #137C27

square

#13337C #7C1367 #7C5C13 #137C27

split-complementary

#13337C #7C2713 #677C13

monochromatic

#040B1B #0B1D47 #13337C #1B49B1 #2B62DF

Accessibility & contrast

On white

11.72

#13337C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#13337C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #13337C

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##13337C	#FFFFFF	#000000	##FFFFFF
##13337C	1.00	11.72	1.79	11.72
#FFFFFF	11.72	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7E

Deuteranopia (green-blind)

#00337B

Tritanopia (blue-blind)

#004552

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #13337c;
/* rgb */ color: rgb(19, 51, 124);
/* oklch */ color: oklch(34.7% 0.130 263.3);

Tailwind

colors: {
  custom: {
    50: '#656aa3',
    500: '#13337c',
    950: '#000000',
  },
}

SCSS

$custom: #13337c;
$custom-light: #656aa3;
$custom-dark: #000000;

JSON

{
  "hex": "#13337c",
  "rgb": {
    "r": 19,
    "g": 51,
    "b": 124
  },
  "hsl": {
    "h": 221.714,
    "s": 73.427,
    "l": 28.039
  },
  "oklch": {
    "l": 0.34733,
    "c": 0.12994,
    "h": 263.3
  },
  "luminance": 0.03961
}

Semantic roles & 50–950 ramp

primary

#13337C

secondary

#B28D39

accent

#B838F0

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #13337C

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

Preview Lab → · Contrast checker → · Palette generator →