#100D49#100D49

#100D49 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.7% C 0.106 H 275.2°. Best body text is #FFFFFF at 17.86:1 contrast (WCAG AA passes).

Color values

HEX	#100D49
RGB	rgb(16, 13, 73)
HSL	hsl(243, 70%, 17%)
HSV	hsv(243, 82%, 29%)
CMYK	cmyk(78.1%, 82.2%, 0%, 71.4%)
CIE-LAB	lab(7.94, 23.88, -36.45)
CIE-LCH	lch(7.94, 43.57, 303.23°)
OKLab	oklab(21.66% 0.0095 -0.1054)
OKLCH	oklch(21.66% 0.106 275.2)
XYZ	xyz(1.5598, 0.8789, 6.3895)
Luminance	0.0088 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100D49 #46490D

analogous

#0D2849 #100D49 #2E0D49

triadic

#100D49 #49100D #0D4910

tetradic

#100D49 #490D28 #46490D #0D492E

square

#100D49 #490D28 #46490D #0D492E

split-complementary

#100D49 #492E0D #28490D

monochromatic

#06051A #06051A #100D49 #1B167D #2720B1

Accessibility & contrast

On white

17.86

#100D49 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#100D49 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100D49

17.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100D49	#FFFFFF	#000000	##FFFFFF
##100D49	1.00	17.86	1.18	17.86
#FFFFFF	17.86	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001A4B

Deuteranopia (green-blind)

#001548

Tritanopia (blue-blind)

#001E2A

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #100d49;
/* rgb */ color: rgb(16, 13, 73);
/* oklch */ color: oklch(21.7% 0.106 275.2);

Tailwind

colors: {
  custom: {
    50: '#594c7d',
    500: '#100d49',
    950: '#000000',
  },
}

SCSS

$custom: #100d49;
$custom-light: #594c7d;
$custom-dark: #000000;

JSON

{
  "hex": "#100d49",
  "rgb": {
    "r": 16,
    "g": 13,
    "b": 73
  },
  "hsl": {
    "h": 243,
    "s": 69.767,
    "l": 16.863
  },
  "oklch": {
    "l": 0.21663,
    "c": 0.10581,
    "h": 275.2
  },
  "luminance": 0.00879
}

Semantic roles & 50–950 ramp

primary

#100D49

secondary

#80842D

accent

#ED3BE4

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04010A

muted

#79777C

Preview Lab

Preview with #100D49

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

Preview Lab → · Contrast checker → · Palette generator →