#13133B#13133B

#13133B is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.5% C 0.075 H 278.0°. Best body text is #FFFFFF at 17.74:1 contrast (WCAG AA passes).

Color values

HEX	#13133B
RGB	rgb(19, 19, 59)
HSL	hsl(240, 51%, 15%)
HSV	hsv(240, 68%, 23%)
CMYK	cmyk(67.8%, 67.8%, 0%, 76.9%)
CIE-LAB	lab(8.31, 14.52, -25.92)
CIE-LCH	lch(8.31, 29.71, 299.26°)
OKLab	oklab(21.54% 0.0105 -0.0744)
OKLCH	oklch(21.54% 0.075 278)
XYZ	xyz(1.2906, 0.9199, 4.2464)
Luminance	0.0092 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 4.30

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#13133B #3B3B13

analogous

#13273B #13133B #27133B

triadic

#13133B #3B1313 #133B13

tetradic

#13133B #3B1327 #3B3B13 #133B27

square

#13133B #3B1327 #3B3B13 #133B27

split-complementary

#13133B #3B2713 #273B13

monochromatic

#070717 #070717 #13133B #222269 #313198

Accessibility & contrast

On white

17.74

#13133B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#13133B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #13133B

17.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##13133B	#FFFFFF	#000000	##FFFFFF
##13133B	1.00	17.74	1.18	17.74
#FFFFFF	17.74	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A3C

Deuteranopia (green-blind)

#00163A

Tritanopia (blue-blind)

#001D24

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #13133b;
/* rgb */ color: rgb(19, 19, 59);
/* oklch */ color: oklch(21.5% 0.075 278.0);

Tailwind

colors: {
  custom: {
    50: '#565071',
    500: '#13133b',
    950: '#000000',
  },
}

SCSS

$custom: #13133b;
$custom-light: #565071;
$custom-dark: #000000;

JSON

{
  "hex": "#13133b",
  "rgb": {
    "r": 19,
    "g": 19,
    "b": 59
  },
  "hsl": {
    "h": 240,
    "s": 51.282,
    "l": 15.294
  },
  "oklch": {
    "l": 0.2154,
    "c": 0.07518,
    "h": 278
  },
  "luminance": 0.0092
}

Semantic roles & 50–950 ramp

primary

#13133B

secondary

#737336

accent

#DB4DDB

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030208

muted

#78787B

Preview Lab

Preview with #13133B

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

Preview Lab → · Contrast checker → · Palette generator →