#13153B#13153B

#13153B is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.0% C 0.072 H 276.5°. Best body text is #FFFFFF at 17.53:1 contrast (WCAG AA passes).

Color values

HEX	#13153B
RGB	rgb(19, 21, 59)
HSL	hsl(237, 51%, 15%)
HSV	hsv(237, 68%, 23%)
CMYK	cmyk(67.8%, 64.4%, 0%, 76.9%)
CIE-LAB	lab(8.91, 12.99, -24.94)
CIE-LCH	lch(8.91, 28.12, 297.51°)
OKLab	oklab(21.99% 0.0081 -0.0715)
OKLCH	oklch(21.99% 0.072 276.5)
XYZ	xyz(1.3259, 0.9904, 4.2581)
Luminance	0.0099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#13153B #3B3913

analogous

#13293B #13153B #25133B

triadic

#13153B #3B1315 #153B13

tetradic

#13153B #3B1329 #3B3913 #133B25

square

#13153B #3B1329 #3B3913 #133B25

split-complementary

#13153B #3B2513 #293B13

monochromatic

#070817 #070817 #13153B #222569 #313698

Accessibility & contrast

On white

17.53

#13153B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#13153B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #13153B

17.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##13153B	#FFFFFF	#000000	##FFFFFF
##13153B	1.00	17.53	1.20	17.53
#FFFFFF	17.53	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B3C

Deuteranopia (green-blind)

#00183A

Tritanopia (blue-blind)

#001E25

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #13153b;
/* rgb */ color: rgb(19, 21, 59);
/* oklch */ color: oklch(22.0% 0.072 276.5);

Tailwind

colors: {
  custom: {
    50: '#565271',
    500: '#13153b',
    950: '#000000',
  },
}

SCSS

$custom: #13153b;
$custom-light: #565271;
$custom-dark: #000000;

JSON

{
  "hex": "#13153b",
  "rgb": {
    "r": 19,
    "g": 21,
    "b": 59
  },
  "hsl": {
    "h": 237,
    "s": 51.282,
    "l": 15.294
  },
  "oklch": {
    "l": 0.2199,
    "c": 0.07198,
    "h": 276.5
  },
  "luminance": 0.00991
}

Semantic roles & 50–950 ramp

primary

#13153B

secondary

#737036

accent

#D44DDB

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030208

muted

#78787B

Preview Lab

Preview with #13153B

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

Preview Lab → · Contrast checker → · Palette generator →