#13103B#13103B

#13103B is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.9% C 0.080 H 280.1°. Best body text is #FFFFFF at 18.03:1 contrast (WCAG AA passes).

Color values

HEX	#13103B
RGB	rgb(19, 16, 59)
HSL	hsl(244, 57%, 15%)
HSV	hsv(244, 73%, 23%)
CMYK	cmyk(67.8%, 72.9%, 0%, 76.9%)
CIE-LAB	lab(7.45, 16.73, -27.31)
CIE-LCH	lch(7.45, 32.02, 301.49°)
OKLab	oklab(20.9% 0.014 -0.0786)
OKLCH	oklch(20.9% 0.08 280.1)
XYZ	xyz(1.2430, 0.8247, 4.2305)
Luminance	0.0083 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#13103B #383B10

analogous

#10233B #13103B #29103B

triadic

#13103B #3B1310 #103B13

tetradic

#13103B #3B1023 #383B10 #103B29

square

#13103B #3B1023 #383B10 #103B29

split-complementary

#13103B #3B2910 #233B10

monochromatic

#080718 #080718 #13103B #231D6B #322A9B

Accessibility & contrast

On white

18.03

#13103B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#13103B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #13103B

18.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##13103B	#FFFFFF	#000000	##FFFFFF
##13103B	1.00	18.03	1.17	18.03
#FFFFFF	18.03	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	18.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00183C

Deuteranopia (green-blind)

#00153A

Tritanopia (blue-blind)

#001B23

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #13103b;
/* rgb */ color: rgb(19, 16, 59);
/* oklch */ color: oklch(20.9% 0.080 280.1);

Tailwind

colors: {
  custom: {
    50: '#564e71',
    500: '#13103b',
    950: '#000000',
  },
}

SCSS

$custom: #13103b;
$custom-light: #564e71;
$custom-dark: #000000;

JSON

{
  "hex": "#13103b",
  "rgb": {
    "r": 19,
    "g": 16,
    "b": 59
  },
  "hsl": {
    "h": 244.186,
    "s": 57.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.20902,
    "c": 0.07984,
    "h": 280.1
  },
  "luminance": 0.00825
}

Semantic roles & 50–950 ramp

primary

#13103B

secondary

#707532

accent

#E147D6

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030108

muted

#78777B

Preview Lab

Preview with #13103B

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

Preview Lab → · Contrast checker → · Palette generator →