#100F4F#100F4F

#100F4F is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.7% C 0.112 H 273.6°. Best body text is #FFFFFF at 17.45:1 contrast (WCAG AA passes).

Color values

HEX#100F4F
RGBrgb(16, 15, 79)
HSLhsl(241, 68%, 18%)
HSVhsv(241, 81%, 31%)
CMYKcmyk(79.7%, 81%, 0%, 69%)
CIE-LABlab(9.12, 24.86, -38.66)
CIE-LCHlch(9.12, 45.96, 302.75°)
OKLaboklab(22.72% 0.007 -0.1118)
OKLCHoklch(22.72% 0.112 273.6)
XYZxyz(1.7953, 1.0161, 7.4971)
Luminance0.0102 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#100F4F #4E4F0F
analogous
#0F2E4F #100F4F #300F4F
triadic
#100F4F #4F100F #0F4F10
tetradic
#100F4F #4F0F2E #4E4F0F #0F4F30
square
#100F4F #4F0F2E #4E4F0F #0F4F30
split-complementary
#100F4F #4F300F #2E4F0F
monochromatic
#05051A #06051C #100F4F #1A1982 #2523B6

Accessibility & contrast

On white

17.45
#100F4F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.20
#100F4F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100F4F
17.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##100F4F#FFFFFF#000000##FFFFFF
##100F4F1.0017.451.2017.45
#FFFFFF17.451.0021.001.00
#0000001.2021.001.0021.00
##FFFFFF17.451.0021.001.00

Color blindness preview

Protanopia (red-blind)
#001D51
Deuteranopia (green-blind)
#00174E
Tritanopia (blue-blind)
#00212E
Achromatopsia (no color)
#1A1A1A

Design tokens & code

CSS
--color: #100f4f;
/* rgb */ color: rgb(16, 15, 79);
/* oklch */ color: oklch(22.7% 0.112 273.6);
Tailwind
colors: {
  custom: {
    50: '#5a4e81',
    500: '#100f4f',
    950: '#000000',
  },
}
SCSS
$custom: #100f4f;
$custom-light: #5a4e81;
$custom-dark: #000000;
JSON
{
  "hex": "#100f4f",
  "rgb": {
    "r": 16,
    "g": 15,
    "b": 79
  },
  "hsl": {
    "h": 240.938,
    "s": 68.085,
    "l": 18.431
  },
  "oklch": {
    "l": 0.22719,
    "c": 0.11204,
    "h": 273.6
  },
  "luminance": 0.01016
}

Semantic roles & 50–950 ramp

primary
#100F4F
secondary
#888931
accent
#EB3DE8
background
#F5F4F8
surface
#E9E7EF
border
#C5C3CA
text
#04010A
muted
#79777C

Preview Lab

Preview with #100F4F

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

Preview Lab → · Contrast checker → · Palette generator →

#100F4F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva