#100C40#100C40

#100C40 is a very dark, moderate blue. Relative luminance 0.007; OKLCH L 20.4% C 0.094 H 277.5°. Best body text is #FFFFFF at 18.28:1 contrast (WCAG AA passes).

Color values

HEX	#100C40
RGB	rgb(16, 12, 64)
HSL	hsl(245, 68%, 15%)
HSV	hsv(245, 81%, 25%)
CMYK	cmyk(75%, 81.2%, 0%, 74.9%)
CIE-LAB	lab(6.71, 20.75, -32.10)
CIE-LCH	lch(6.71, 38.23, 302.88°)
OKLab	oklab(20.42% 0.0123 -0.0931)
OKLCH	oklch(20.42% 0.094 277.5)
XYZ	xyz(1.2703, 0.7432, 4.9260)
Luminance	0.0074 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Navy Blue (survey)

#001146

ΔE00 3.24

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#100C40 #3C400C

analogous

#0C2240 #100C40 #2A0C40

triadic

#100C40 #40100C #0C4010

tetradic

#100C40 #400C22 #3C400C #0C402A

square

#100C40 #400C22 #3C400C #0C402A

split-complementary

#100C40 #402A0C #22400C

monochromatic

#06051A #06051A #100C40 #1D1674 #2A1FA7

Accessibility & contrast

On white

18.28

#100C40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#100C40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100C40

18.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##100C40	#FFFFFF	#000000	##FFFFFF
##100C40	1.00	18.28	1.15	18.28
#FFFFFF	18.28	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001742

Deuteranopia (green-blind)

#00133F

Tritanopia (blue-blind)

#001A25

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #100c40;
/* rgb */ color: rgb(16, 12, 64);
/* oklch */ color: oklch(20.4% 0.094 277.5);

Tailwind

colors: {
  custom: {
    50: '#564b75',
    500: '#100c40',
    950: '#000000',
  },
}

SCSS

$custom: #100c40;
$custom-light: #564b75;
$custom-dark: #000000;

JSON

{
  "hex": "#100c40",
  "rgb": {
    "r": 16,
    "g": 12,
    "b": 64
  },
  "hsl": {
    "h": 244.615,
    "s": 68.421,
    "l": 14.902
  },
  "oklch": {
    "l": 0.20418,
    "c": 0.09389,
    "h": 277.5
  },
  "luminance": 0.00743
}

Semantic roles & 50–950 ramp

primary

#100C40

secondary

#767C2C

accent

#EB3DDE

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#030108

muted

#78777B

Preview Lab

Preview with #100C40

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

Preview Lab → · Contrast checker → · Palette generator →