#11103B#11103B

#11103B is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.7% C 0.080 H 277.8°. Best body text is #FFFFFF at 18.08:1 contrast (WCAG AA passes).

Color values

HEX	#11103B
RGB	rgb(17, 16, 59)
HSL	hsl(241, 57%, 15%)
HSV	hsv(241, 73%, 23%)
CMYK	cmyk(71.2%, 72.9%, 0%, 76.9%)
CIE-LAB	lab(7.28, 16.28, -27.60)
CIE-LCH	lch(7.28, 32.05, 300.54°)
OKLab	oklab(20.72% 0.0109 -0.0796)
OKLCH	oklch(20.72% 0.08 277.8)
XYZ	xyz(1.2056, 0.8054, 4.2288)
Luminance	0.0081 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Dark Navy

#000435

ΔE00 3.46

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#11103B #3A3B10

analogous

#10253B #11103B #27103B

triadic

#11103B #3B1110 #103B11

tetradic

#11103B #3B1025 #3A3B10 #103B27

square

#11103B #3B1025 #3A3B10 #103B27

split-complementary

#11103B #3B2710 #253B10

monochromatic

#070718 #070718 #11103B #1F1D6B #2D2A9B

Accessibility & contrast

On white

18.08

#11103B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#11103B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #11103B

18.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##11103B	#FFFFFF	#000000	##FFFFFF
##11103B	1.00	18.08	1.16	18.08
#FFFFFF	18.08	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00183C

Deuteranopia (green-blind)

#00143A

Tritanopia (blue-blind)

#001B23

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #11103b;
/* rgb */ color: rgb(17, 16, 59);
/* oklch */ color: oklch(20.7% 0.080 277.8);

Tailwind

colors: {
  custom: {
    50: '#554e71',
    500: '#11103b',
    950: '#000000',
  },
}

SCSS

$custom: #11103b;
$custom-light: #554e71;
$custom-dark: #000000;

JSON

{
  "hex": "#11103b",
  "rgb": {
    "r": 17,
    "g": 16,
    "b": 59
  },
  "hsl": {
    "h": 241.395,
    "s": 57.333,
    "l": 14.706
  },
  "oklch": {
    "l": 0.2072,
    "c": 0.08033,
    "h": 277.8
  },
  "luminance": 0.00806
}

Semantic roles & 50–950 ramp

primary

#11103B

secondary

#737532

accent

#E147DD

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030108

muted

#78777B

Preview Lab

Preview with #11103B

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

Preview Lab → · Contrast checker → · Palette generator →