#11183E#11183E

#11183E is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.8% C 0.073 H 271.6°. Best body text is #FFFFFF at 17.16:1 contrast (WCAG AA passes).

Color values

HEX	#11183E
RGB	rgb(17, 24, 62)
HSL	hsl(231, 57%, 15%)
HSV	hsv(231, 73%, 24%)
CMYK	cmyk(72.6%, 61.3%, 0%, 75.7%)
CIE-LAB	lab(9.95, 11.48, -25.40)
CIE-LCH	lch(9.95, 27.87, 294.32°)
OKLab	oklab(22.81% 0.002 -0.0729)
OKLCH	oklch(22.81% 0.073 271.6)
XYZ	xyz(1.4270, 1.1201, 4.6975)
Luminance	0.0112 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#11183E #3E3711

analogous

#112E3E #11183E #20113E

triadic

#11183E #3E1118 #183E11

tetradic

#11183E #3E112E #3E3711 #113E20

square

#11183E #3E112E #3E3711 #113E20

split-complementary

#11183E #3E2011 #2E3E11

monochromatic

#070918 #070918 #11183E #1E2B6E #2B3D9E

Accessibility & contrast

On white

17.16

#11183E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#11183E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #11183E

17.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##11183E	#FFFFFF	#000000	##FFFFFF
##11183E	1.00	17.16	1.22	17.16
#FFFFFF	17.16	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#021D3F

Deuteranopia (green-blind)

#00193D

Tritanopia (blue-blind)

#002128

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #11183e;
/* rgb */ color: rgb(17, 24, 62);
/* oklch */ color: oklch(22.8% 0.073 271.6);

Tailwind

colors: {
  custom: {
    50: '#555473',
    500: '#11183e',
    950: '#000000',
  },
}

SCSS

$custom: #11183e;
$custom-light: #555473;
$custom-dark: #000000;

JSON

{
  "hex": "#11183e",
  "rgb": {
    "r": 17,
    "g": 24,
    "b": 62
  },
  "hsl": {
    "h": 230.667,
    "s": 56.962,
    "l": 15.49
  },
  "oklch": {
    "l": 0.22812,
    "c": 0.07293,
    "h": 271.6
  },
  "luminance": 0.0112
}

Semantic roles & 50–950 ramp

primary

#11183E

secondary

#776D33

accent

#C848E0

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #11183E

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

Preview Lab → · Contrast checker → · Palette generator →