#11183F#11183F

#11183F is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.9% C 0.075 H 271.6°. Best body text is #FFFFFF at 17.13:1 contrast (WCAG AA passes).

Color values

HEX	#11183F
RGB	rgb(17, 24, 63)
HSL	hsl(231, 58%, 16%)
HSV	hsv(231, 73%, 25%)
CMYK	cmyk(73%, 61.9%, 0%, 75.3%)
CIE-LAB	lab(10.04, 11.90, -25.97)
CIE-LCH	lch(10.04, 28.56, 294.62°)
OKLab	oklab(22.9% 0.0021 -0.0746)
OKLCH	oklch(22.9% 0.075 271.6)
XYZ	xyz(1.4547, 1.1312, 4.8433)
Luminance	0.0113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#11183F #3F3811

analogous

#112F3F #11183F #21113F

triadic

#11183F #3F1118 #183F11

tetradic

#11183F #3F112F #3F3811 #113F21

square

#11183F #3F112F #3F3811 #113F21

split-complementary

#11183F #3F2111 #2F3F11

monochromatic

#070918 #070918 #11183F #1E2A6F #2B3D9F

Accessibility & contrast

On white

17.13

#11183F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#11183F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #11183F

17.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##11183F	#FFFFFF	#000000	##FFFFFF
##11183F	1.00	17.13	1.23	17.13
#FFFFFF	17.13	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#011E40

Deuteranopia (green-blind)

#001A3E

Tritanopia (blue-blind)

#002128

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #11183f;
/* rgb */ color: rgb(17, 24, 63);
/* oklch */ color: oklch(22.9% 0.075 271.6);

Tailwind

colors: {
  custom: {
    50: '#555474',
    500: '#11183f',
    950: '#000000',
  },
}

SCSS

$custom: #11183f;
$custom-light: #555474;
$custom-dark: #000000;

JSON

{
  "hex": "#11183f",
  "rgb": {
    "r": 17,
    "g": 24,
    "b": 63
  },
  "hsl": {
    "h": 230.87,
    "s": 57.5,
    "l": 15.686
  },
  "oklch": {
    "l": 0.22903,
    "c": 0.07461,
    "h": 271.6
  },
  "luminance": 0.01131
}

Semantic roles & 50–950 ramp

primary

#11183F

secondary

#786E33

accent

#C947E1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030208

muted

#78787B

Preview Lab

Preview with #11183F

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

Preview Lab → · Contrast checker → · Palette generator →