#100C49#100C49

#100C49 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.5% C 0.107 H 275.4°. Best body text is #FFFFFF at 17.94:1 contrast (WCAG AA passes).

Color values

HEX	#100C49
RGB	rgb(16, 12, 73)
HSL	hsl(244, 72%, 17%)
HSV	hsv(244, 84%, 29%)
CMYK	cmyk(78.1%, 83.6%, 0%, 71.4%)
CIE-LAB	lab(7.71, 24.51, -36.82)
CIE-LCH	lch(7.71, 44.23, 303.65°)
OKLab	oklab(21.5% 0.0101 -0.1065)
OKLCH	oklch(21.5% 0.107 275.4)
XYZ	xyz(1.5474, 0.8540, 6.3853)
Luminance	0.0085 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100C49 #45490C

analogous

#0C2749 #100C49 #2F0C49

triadic

#100C49 #49100C #0C4910

tetradic

#100C49 #490C27 #45490C #0C492F

square

#100C49 #490C27 #45490C #0C492F

split-complementary

#100C49 #492F0C #27490C

monochromatic

#06041A #06041A #100C49 #1C157E #271DB2

Accessibility & contrast

On white

17.94

#100C49 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#100C49 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100C49

17.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100C49	#FFFFFF	#000000	##FFFFFF
##100C49	1.00	17.94	1.17	17.94
#FFFFFF	17.94	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A4B

Deuteranopia (green-blind)

#001448

Tritanopia (blue-blind)

#001E2A

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #100c49;
/* rgb */ color: rgb(16, 12, 73);
/* oklch */ color: oklch(21.5% 0.107 275.4);

Tailwind

colors: {
  custom: {
    50: '#594c7d',
    500: '#100c49',
    950: '#000000',
  },
}

SCSS

$custom: #100c49;
$custom-light: #594c7d;
$custom-dark: #000000;

JSON

{
  "hex": "#100c49",
  "rgb": {
    "r": 16,
    "g": 12,
    "b": 73
  },
  "hsl": {
    "h": 243.934,
    "s": 71.765,
    "l": 16.667
  },
  "oklch": {
    "l": 0.21501,
    "c": 0.10694,
    "h": 275.4
  },
  "luminance": 0.00854
}

Semantic roles & 50–950 ramp

primary

#100C49

secondary

#7F852C

accent

#EE39E3

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04010A

muted

#79777C

Preview Lab

Preview with #100C49

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

Preview Lab → · Contrast checker → · Palette generator →