#100C45#100C45

#100C45 is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 21.0% C 0.101 H 276.3°. Best body text is #FFFFFF at 18.09:1 contrast (WCAG AA passes).

Color values

HEX	#100C45
RGB	rgb(16, 12, 69)
HSL	hsl(244, 70%, 16%)
HSV	hsv(244, 83%, 27%)
CMYK	cmyk(76.8%, 82.6%, 0%, 72.9%)
CIE-LAB	lab(7.25, 22.90, -34.77)
CIE-LCH	lch(7.25, 41.64, 303.37°)
OKLab	oklab(21.01% 0.0111 -0.1006)
OKLCH	oklch(21.01% 0.101 276.3)
XYZ	xyz(1.4190, 0.8026, 5.7092)
Luminance	0.0080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100C45 #41450C

analogous

#0C2445 #100C45 #2C0C45

triadic

#100C45 #45100C #0C4510

tetradic

#100C45 #450C24 #41450C #0C452C

square

#100C45 #450C24 #41450C #0C452C

split-complementary

#100C45 #452C0C #24450C

monochromatic

#06051A #06051A #100C45 #1C1579 #281EAD

Accessibility & contrast

On white

18.09

#100C45 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.16

#100C45 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100C45

18.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100C45	#FFFFFF	#000000	##FFFFFF
##100C45	1.00	18.09	1.16	18.09
#FFFFFF	18.09	1.00	21.00	1.00
#000000	1.16	21.00	1.00	21.00
##FFFFFF	18.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001847

Deuteranopia (green-blind)

#001344

Tritanopia (blue-blind)

#001C27

Achromatopsia (no color)

#161616

Design tokens & code

CSS

--color: #100c45;
/* rgb */ color: rgb(16, 12, 69);
/* oklch */ color: oklch(21.0% 0.101 276.3);

Tailwind

colors: {
  custom: {
    50: '#584b79',
    500: '#100c45',
    950: '#000000',
  },
}

SCSS

$custom: #100c45;
$custom-light: #584b79;
$custom-dark: #000000;

JSON

{
  "hex": "#100c45",
  "rgb": {
    "r": 16,
    "g": 12,
    "b": 69
  },
  "hsl": {
    "h": 244.211,
    "s": 70.37,
    "l": 15.882
  },
  "oklch": {
    "l": 0.21013,
    "c": 0.10122,
    "h": 276.3
  },
  "luminance": 0.00803
}

Semantic roles & 50–950 ramp

primary

#100C45

secondary

#7B812C

accent

#ED3BE1

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040109

muted

#79777B

Preview Lab

Preview with #100C45

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

Preview Lab → · Contrast checker → · Palette generator →