#100D48#100D48

#100D48 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.5% C 0.104 H 275.4°. Best body text is #FFFFFF at 17.90:1 contrast (WCAG AA passes).

Color values

HEX#100D48
RGBrgb(16, 13, 72)
HSLhsl(243, 69%, 17%)
HSVhsv(243, 82%, 28%)
CMYKcmyk(77.8%, 81.9%, 0%, 71.8%)
CIE-LABlab(7.82, 23.49, -35.94)
CIE-LCHlch(7.82, 42.94, 303.17°)
OKLaboklab(21.54% 0.0097 -0.1039)
OKLCHoklch(21.54% 0.104 275.4)
XYZxyz(1.5269, 0.8657, 6.2163)
Luminance0.0087 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#100D48 #45480D
analogous
#0D2848 #100D48 #2E0D48
triadic
#100D48 #48100D #0D4810
tetradic
#100D48 #480D28 #45480D #0D482E
square
#100D48 #480D28 #45480D #0D482E
split-complementary
#100D48 #482E0D #28480D
monochromatic
#06051A #06051A #100D48 #1C167C #2720B0

Accessibility & contrast

On white

17.90
#100D48 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.17
#100D48 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100D48
17.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##100D48#FFFFFF#000000##FFFFFF
##100D481.0017.901.1717.90
#FFFFFF17.901.0021.001.00
#0000001.1721.001.0021.00
##FFFFFF17.901.0021.001.00

Color blindness preview

Protanopia (red-blind)
#001A4A
Deuteranopia (green-blind)
#001447
Tritanopia (blue-blind)
#001E29
Achromatopsia (no color)
#171717

Design tokens & code

CSS
--color: #100d48;
/* rgb */ color: rgb(16, 13, 72);
/* oklch */ color: oklch(21.5% 0.104 275.4);
Tailwind
colors: {
  custom: {
    50: '#594c7c',
    500: '#100d48',
    950: '#000000',
  },
}
SCSS
$custom: #100d48;
$custom-light: #594c7c;
$custom-dark: #000000;
JSON
{
  "hex": "#100d48",
  "rgb": {
    "r": 16,
    "g": 13,
    "b": 72
  },
  "hsl": {
    "h": 243.051,
    "s": 69.412,
    "l": 16.667
  },
  "oklch": {
    "l": 0.21542,
    "c": 0.10437,
    "h": 275.4
  },
  "luminance": 0.00866
}

Semantic roles & 50–950 ramp

primary
#100D48
secondary
#7F832D
accent
#EC3CE3
background
#F5F4F7
surface
#E9E7EE
border
#C5C3C9
text
#040109
muted
#79777B

Preview Lab

Preview with #100D48

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

Preview Lab → · Contrast checker → · Palette generator →

#100D48 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva