#13377B#13377B

#13377B is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.5% C 0.123 H 261.6°. Best body text is #FFFFFF at 11.29:1 contrast (WCAG AA passes).

Color values

HEX	#13377B
RGB	rgb(19, 55, 123)
HSL	hsl(219, 73%, 28%)
HSV	hsv(219, 85%, 48%)
CMYK	cmyk(84.6%, 55.3%, 0%, 51.8%)
CIE-LAB	lab(24.64, 14.74, -42.26)
CIE-LCH	lch(24.64, 44.76, 289.23°)
OKLab	oklab(35.54% -0.0181 -0.1219)
OKLCH	oklch(35.54% 0.123 261.6)
XYZ	xyz(5.2086, 4.3003, 19.2906)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#13377B #7B5713

analogous

#136B7B #13377B #23137B

triadic

#13377B #7B1337 #377B13

tetradic

#13377B #7B136B #7B5713 #137B23

square

#13377B #7B136B #7B5713 #137B23

split-complementary

#13377B #7B2313 #6B7B13

monochromatic

#040C1B #0B1F46 #13377B #1B4FB0 #2A69DE

Accessibility & contrast

On white

11.29

#13377B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#13377B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #13377B

11.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##13377B	#FFFFFF	#000000	##FFFFFF
##13377B	1.00	11.29	1.86	11.29
#FFFFFF	11.29	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#023F7D

Deuteranopia (green-blind)

#00367A

Tritanopia (blue-blind)

#004853

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #13377b;
/* rgb */ color: rgb(19, 55, 123);
/* oklch */ color: oklch(35.5% 0.123 261.6);

Tailwind

colors: {
  custom: {
    50: '#646da2',
    500: '#13377b',
    950: '#000000',
  },
}

SCSS

$custom: #13377b;
$custom-light: #646da2;
$custom-dark: #000000;

JSON

{
  "hex": "#13377b",
  "rgb": {
    "r": 19,
    "g": 55,
    "b": 123
  },
  "hsl": {
    "h": 219.231,
    "s": 73.239,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35539,
    "c": 0.12321,
    "h": 261.6
  },
  "luminance": 0.04301
}

Semantic roles & 50–950 ramp

primary

#13377B

secondary

#B18739

accent

#B038F0

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #13377B

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

Preview Lab → · Contrast checker → · Palette generator →