#11303B#11303B

#11303B is a dark, muted cyan. Relative luminance 0.025; OKLCH L 29.1% C 0.041 H 224.3°. Best body text is #FFFFFF at 13.91:1 contrast (WCAG AA passes).

Color values

HEX	#11303B
RGB	rgb(17, 48, 59)
HSL	hsl(196, 55%, 15%)
HSV	hsv(196, 71%, 23%)
CMYK	cmyk(71.2%, 18.6%, 0%, 76.9%)
CIE-LAB	lab(18.14, -7.35, -10.39)
CIE-LCH	lch(18.14, 12.73, 234.72°)
OKLab	oklab(29.13% -0.0296 -0.0289)
OKLCH	oklch(29.13% 0.041 224.3)
XYZ	xyz(2.0772, 2.5486, 4.5193)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#11303B #3B1C11

analogous

#113B31 #11303B #111B3B

triadic

#11303B #3B1130 #303B11

tetradic

#11303B #31113B #3B1C11 #1B3B11

square

#11303B #31113B #3B1C11 #1B3B11

split-complementary

#11303B #3B111B #3B3111

monochromatic

#071318 #071318 #11303B #1F576B #2C7D9A

Accessibility & contrast

On white

13.91

#11303B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#11303B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #11303B

13.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##11303B	#FFFFFF	#000000	##FFFFFF
##11303B	1.00	13.91	1.51	13.91
#FFFFFF	13.91	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A2F3C

Deuteranopia (green-blind)

#242A3B

Tritanopia (blue-blind)

#003334

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #11303b;
/* rgb */ color: rgb(17, 48, 59);
/* oklch */ color: oklch(29.1% 0.041 224.3);

Tailwind

colors: {
  custom: {
    50: '#546871',
    500: '#11303b',
    950: '#000000',
  },
}

SCSS

$custom: #11303b;
$custom-light: #546871;
$custom-dark: #000000;

JSON

{
  "hex": "#11303b",
  "rgb": {
    "r": 17,
    "g": 48,
    "b": 59
  },
  "hsl": {
    "h": 195.714,
    "s": 55.263,
    "l": 14.902
  },
  "oklch": {
    "l": 0.29129,
    "c": 0.04143,
    "h": 224.3
  },
  "luminance": 0.02549
}

Semantic roles & 50–950 ramp

primary

#11303B

secondary

#744433

accent

#7049DF

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #11303B

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

Preview Lab → · Contrast checker → · Palette generator →