#11183C#11183C

#11183C is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.6% C 0.070 H 271.5°. Best body text is #FFFFFF at 17.22:1 contrast (WCAG AA passes).

Color values

HEX	#11183C
RGB	rgb(17, 24, 60)
HSL	hsl(230, 56%, 15%)
HSV	hsv(230, 72%, 24%)
CMYK	cmyk(71.7%, 60%, 0%, 76.5%)
CIE-LAB	lab(9.79, 10.62, -24.24)
CIE-LCH	lch(9.79, 26.47, 293.66°)
OKLab	oklab(22.63% 0.0018 -0.0695)
OKLCH	oklch(22.63% 0.07 271.5)
XYZ	xyz(1.3731, 1.0986, 4.4138)
Luminance	0.0110 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#11183C #3C3511

analogous

#112D3C #11183C #20113C

triadic

#11183C #3C1118 #183C11

tetradic

#11183C #3C112D #3C3511 #113C20

square

#11183C #3C112D #3C3511 #113C20

split-complementary

#11183C #3C2011 #2D3C11

monochromatic

#070A18 #070A18 #11183C #1F2B6C #2C3E9B

Accessibility & contrast

On white

17.22

#11183C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#11183C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #11183C

17.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##11183C	#FFFFFF	#000000	##FFFFFF
##11183C	1.00	17.22	1.22	17.22
#FFFFFF	17.22	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#041D3D

Deuteranopia (green-blind)

#00193B

Tritanopia (blue-blind)

#002027

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #11183c;
/* rgb */ color: rgb(17, 24, 60);
/* oklch */ color: oklch(22.6% 0.070 271.5);

Tailwind

colors: {
  custom: {
    50: '#545472',
    500: '#11183c',
    950: '#000000',
  },
}

SCSS

$custom: #11183c;
$custom-light: #545472;
$custom-dark: #000000;

JSON

{
  "hex": "#11183c",
  "rgb": {
    "r": 17,
    "g": 24,
    "b": 60
  },
  "hsl": {
    "h": 230.233,
    "s": 55.844,
    "l": 15.098
  },
  "oklch": {
    "l": 0.22633,
    "c": 0.06953,
    "h": 271.5
  },
  "luminance": 0.01099
}

Semantic roles & 50–950 ramp

primary

#11183C

secondary

#756B33

accent

#C749DF

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030208

muted

#78787B

Preview Lab

Preview with #11183C

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

Preview Lab → · Contrast checker → · Palette generator →