#100E4B#100E4B

#100E4B is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 22.1% C 0.107 H 274.5°. Best body text is #FFFFFF at 17.70:1 contrast (WCAG AA passes).

Color values

HEX	#100E4B
RGB	rgb(16, 14, 75)
HSL	hsl(242, 69%, 17%)
HSV	hsv(242, 81%, 29%)
CMYK	cmyk(78.7%, 81.3%, 0%, 70.6%)
CIE-LAB	lab(8.41, 23.98, -37.06)
CIE-LCH	lch(8.41, 44.14, 302.91°)
OKLab	oklab(22.07% 0.0084 -0.1072)
OKLCH	oklch(22.07% 0.108 274.5)
XYZ	xyz(1.6403, 0.9321, 6.7487)
Luminance	0.0093 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100E4B #494B0E

analogous

#0E2B4B #100E4B #2E0E4B

triadic

#100E4B #4B100E #0E4B10

tetradic

#100E4B #4B0E2B #494B0E #0E4B2E

square

#100E4B #4B0E2B #494B0E #0E4B2E

split-complementary

#100E4B #4B2E0E #2B4B0E

monochromatic

#06051A #06051A #100E4B #1B187F #2621B2

Accessibility & contrast

On white

17.70

#100E4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#100E4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100E4B

17.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100E4B	#FFFFFF	#000000	##FFFFFF
##100E4B	1.00	17.70	1.19	17.70
#FFFFFF	17.70	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B4D

Deuteranopia (green-blind)

#00154A

Tritanopia (blue-blind)

#001F2B

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #100e4b;
/* rgb */ color: rgb(16, 14, 75);
/* oklch */ color: oklch(22.1% 0.107 274.5);

Tailwind

colors: {
  custom: {
    50: '#594d7e',
    500: '#100e4b',
    950: '#000000',
  },
}

SCSS

$custom: #100e4b;
$custom-light: #594d7e;
$custom-dark: #000000;

JSON

{
  "hex": "#100e4b",
  "rgb": {
    "r": 16,
    "g": 14,
    "b": 75
  },
  "hsl": {
    "h": 241.967,
    "s": 68.539,
    "l": 17.451
  },
  "oklch": {
    "l": 0.2207,
    "c": 0.1075,
    "h": 274.5
  },
  "luminance": 0.00932
}

Semantic roles & 50–950 ramp

primary

#100E4B

secondary

#83862F

accent

#EB3CE6

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04010A

muted

#79777C

Preview Lab

Preview with #100E4B

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

Preview Lab → · Contrast checker → · Palette generator →