#100E51#100E51

#100E51 is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.8% C 0.116 H 273.5°. Best body text is #FFFFFF at 17.45:1 contrast (WCAG AA passes).

Color values

HEX#100E51
RGBrgb(16, 14, 81)
HSLhsl(242, 71%, 19%)
HSVhsv(242, 83%, 32%)
CMYKcmyk(80.2%, 82.7%, 0%, 68.2%)
CIE-LABlab(9.14, 26.26, -40.01)
CIE-LCHlch(9.14, 47.85, 303.28°)
OKLaboklab(22.8% 0.0071 -0.1157)
OKLCHoklch(22.8% 0.116 273.5)
XYZxyz(1.8554, 1.0181, 7.8817)
Luminance0.0102 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#100E51 #4F510E
analogous
#0E2D51 #100E51 #310E51
triadic
#100E51 #51100E #0E5110
tetradic
#100E51 #510E2D #4F510E #0E5131
square
#100E51 #510E2D #4F510E #0E5131
split-complementary
#100E51 #51310E #2D510E
monochromatic
#05051A #06051D #100E51 #1A1785 #2520B9

Accessibility & contrast

On white

17.45
#100E51 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.20
#100E51 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #100E51
17.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##100E51#FFFFFF#000000##FFFFFF
##100E511.0017.451.2017.45
#FFFFFF17.451.0021.001.00
#0000001.2021.001.0021.00
##FFFFFF17.451.0021.001.00

Color blindness preview

Protanopia (red-blind)
#001D53
Deuteranopia (green-blind)
#001750
Tritanopia (blue-blind)
#00222F
Achromatopsia (no color)
#1A1A1A

Design tokens & code

CSS
--color: #100e51;
/* rgb */ color: rgb(16, 14, 81);
/* oklch */ color: oklch(22.8% 0.116 273.5);
Tailwind
colors: {
  custom: {
    50: '#5b4d83',
    500: '#100e51',
    950: '#000000',
  },
}
SCSS
$custom: #100e51;
$custom-light: #5b4d83;
$custom-dark: #000000;
JSON
{
  "hex": "#100e51",
  "rgb": {
    "r": 16,
    "g": 14,
    "b": 81
  },
  "hsl": {
    "h": 241.791,
    "s": 70.526,
    "l": 18.627
  },
  "oklch": {
    "l": 0.22803,
    "c": 0.11596,
    "h": 273.5
  },
  "luminance": 0.01018
}

Semantic roles & 50–950 ramp

primary
#100E51
secondary
#898C2F
accent
#ED3AE8
background
#F5F4F8
surface
#E9E7EF
border
#C5C3CA
text
#04010B
muted
#79777C

Preview Lab

Preview with #100E51

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

Preview Lab → · Contrast checker → · Palette generator →

#100E51 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva