#11304B#11304B

#11304B is a dark, moderate cyan. Relative luminance 0.027; OKLCH L 30.1% C 0.061 H 247.8°. Best body text is #FFFFFF at 13.56:1 contrast (WCAG AA passes).

Color values

HEX	#11304B
RGB	rgb(17, 48, 75)
HSL	hsl(208, 63%, 18%)
HSV	hsv(208, 77%, 29%)
CMYK	cmyk(77.3%, 36%, 0%, 70.6%)
CIE-LAB	lab(18.97, -0.92, -20.01)
CIE-LCH	lch(18.97, 20.03, 267.36°)
OKLab	oklab(30.07% -0.0231 -0.0567)
OKLCH	oklch(30.07% 0.061 247.8)
XYZ	xyz(2.5576, 2.7408, 7.0495)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#11304B #4B2C11

analogous

#114B49 #11304B #11134B

triadic

#11304B #4B1130 #304B11

tetradic

#11304B #49114B #4B2C11 #134B11

square

#11304B #49114B #4B2C11 #134B11

split-complementary

#11304B #4B1113 #4B4911

monochromatic

#061019 #061019 #11304B #1C507D #2870AF

Accessibility & contrast

On white

13.56

#11304B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#11304B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #11304B

13.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##11304B	#FFFFFF	#000000	##FFFFFF
##11304B	1.00	13.56	1.55	13.56
#FFFFFF	13.56	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24314C

Deuteranopia (green-blind)

#1C2C4A

Tritanopia (blue-blind)

#00363A

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #11304b;
/* rgb */ color: rgb(17, 48, 75);
/* oklch */ color: oklch(30.1% 0.061 247.8);

Tailwind

colors: {
  custom: {
    50: '#57687d',
    500: '#11304b',
    950: '#000000',
  },
}

SCSS

$custom: #11304b;
$custom-light: #57687d;
$custom-dark: #000000;

JSON

{
  "hex": "#11304b",
  "rgb": {
    "r": 17,
    "g": 48,
    "b": 75
  },
  "hsl": {
    "h": 207.931,
    "s": 63.043,
    "l": 18.039
  },
  "oklch": {
    "l": 0.30069,
    "c": 0.06123,
    "h": 247.8
  },
  "luminance": 0.02741
}

Semantic roles & 50–950 ramp

primary

#11304B

secondary

#845933

accent

#8E42E6

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#040609

muted

#797A7B

Preview Lab

Preview with #11304B

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

Preview Lab → · Contrast checker → · Palette generator →