#100F4C#100F4C

#100F4C is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.4% C 0.108 H 274.0°. Best body text is #FFFFFF at 17.58:1 contrast (WCAG AA passes).

Color values

HEX#100F4C
RGBrgb(16, 15, 76)
HSLhsl(241, 67%, 18%)
HSVhsv(241, 80%, 30%)
CMYKcmyk(78.9%, 80.3%, 0%, 70.2%)
CIE-LABlab(8.77, 23.71, -37.17)
CIE-LCHlch(8.77, 44.09, 302.53°)
OKLaboklab(22.36% 0.0076 -0.1075)
OKLCHoklch(22.36% 0.108 274)
XYZxyz(1.6886, 0.9734, 6.9350)
Luminance0.0097 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#100F4C #4B4C0F
analogous
#0F2C4C #100F4C #2F0F4C
triadic
#100F4C #4C100F #0F4C10
tetradic
#100F4C #4C0F2C #4B4C0F #0F4C2F
square
#100F4C #4C0F2C #4B4C0F #0F4C2F
split-complementary
#100F4C #4C2F0F #2C4C0F
monochromatic
#05051A #05051A #100F4C #1B197F #2623B2

Accessibility & contrast

On white

17.58
#100F4C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.19
#100F4C on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100F4C
17.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##100F4C#FFFFFF#000000##FFFFFF
##100F4C1.0017.581.1917.58
#FFFFFF17.581.0021.001.00
#0000001.1921.001.0021.00
##FFFFFF17.581.0021.001.00

Color blindness preview

Protanopia (red-blind)
#001C4E
Deuteranopia (green-blind)
#00164B
Tritanopia (blue-blind)
#00202C
Achromatopsia (no color)
#191919

Design tokens & code

CSS
--color: #100f4c;
/* rgb */ color: rgb(16, 15, 76);
/* oklch */ color: oklch(22.4% 0.108 274.0);
Tailwind
colors: {
  custom: {
    50: '#594e7f',
    500: '#100f4c',
    950: '#000000',
  },
}
SCSS
$custom: #100f4c;
$custom-light: #594e7f;
$custom-dark: #000000;
JSON
{
  "hex": "#100f4c",
  "rgb": {
    "r": 16,
    "g": 15,
    "b": 76
  },
  "hsl": {
    "h": 240.984,
    "s": 67.033,
    "l": 17.843
  },
  "oklch": {
    "l": 0.22359,
    "c": 0.10776,
    "h": 274
  },
  "luminance": 0.00974
}

Semantic roles & 50–950 ramp

primary
#100F4C
secondary
#858631
accent
#EA3EE7
background
#F5F4F7
surface
#E9E7EE
border
#C5C3C9
text
#04010A
muted
#79777C

Preview Lab

Preview with #100F4C

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

Preview Lab → · Contrast checker → · Palette generator →

#100F4C Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva