#11284B#11284B

#11284B is a dark, moderate blue. Relative luminance 0.021; OKLCH L 27.9% C 0.071 H 258.6°. Best body text is #FFFFFF at 14.70:1 contrast (WCAG AA passes).

Color values

HEX	#11284B
RGB	rgb(17, 40, 75)
HSL	hsl(216, 63%, 18%)
HSV	hsv(216, 77%, 29%)
CMYK	cmyk(77.3%, 46.7%, 0%, 70.6%)
CIE-LAB	lab(16.23, 4.85, -24.36)
CIE-LCH	lch(16.23, 24.84, 281.27°)
OKLab	oklab(27.92% -0.014 -0.0696)
OKLCH	oklch(27.92% 0.071 258.6)
XYZ	xyz(2.2595, 2.1445, 6.9501)
Luminance	0.0215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#11284B #4B3411

analogous

#11454B #11284B #17114B

triadic

#11284B #4B1128 #284B11

tetradic

#11284B #4B1145 #4B3411 #114B17

square

#11284B #4B1145 #4B3411 #114B17

split-complementary

#11284B #4B1711 #454B11

monochromatic

#060D19 #060D19 #11284B #1C437D #285DAF

Accessibility & contrast

On white

14.70

#11284B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#11284B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #11284B

14.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##11284B	#FFFFFF	#000000	##FFFFFF
##11284B	1.00	14.70	1.43	14.70
#FFFFFF	14.70	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#172B4C

Deuteranopia (green-blind)

#0E264A

Tritanopia (blue-blind)

#003035

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #11284b;
/* rgb */ color: rgb(17, 40, 75);
/* oklch */ color: oklch(27.9% 0.071 258.6);

Tailwind

colors: {
  custom: {
    50: '#57617d',
    500: '#11284b',
    950: '#000000',
  },
}

SCSS

$custom: #11284b;
$custom-light: #57617d;
$custom-dark: #000000;

JSON

{
  "hex": "#11284b",
  "rgb": {
    "r": 17,
    "g": 40,
    "b": 75
  },
  "hsl": {
    "h": 216.207,
    "s": 63.043,
    "l": 18.039
  },
  "oklch": {
    "l": 0.27924,
    "c": 0.07097,
    "h": 258.6
  },
  "luminance": 0.02145
}

Semantic roles & 50–950 ramp

primary

#11284B

secondary

#846433

accent

#A542E6

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04050A

muted

#79797C

Preview Lab

Preview with #11284B

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

Preview Lab → · Contrast checker → · Palette generator →