#101C51#101C51

#101C51 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.5% C 0.098 H 268.6°. Best body text is #FFFFFF at 16.07:1 contrast (WCAG AA passes).

Color values

HEX#101C51
RGBrgb(16, 28, 81)
HSLhsl(229, 67%, 19%)
HSVhsv(229, 80%, 32%)
CMYKcmyk(80.2%, 65.4%, 0%, 68.2%)
CIE-LABlab(12.83, 16.36, -33.95)
CIE-LCHlch(12.83, 37.69, 295.72°)
OKLaboklab(25.48% -0.0024 -0.098)
OKLCHoklch(25.48% 0.098 268.6)
XYZxyz(2.1136, 1.5345, 7.9678)
Luminance0.0154 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#101C51 #514510
analogous
#103D51 #101C51 #251051
triadic
#101C51 #51101C #1C5110
tetradic
#101C51 #51103D #514510 #105125
square
#101C51 #51103D #514510 #105125
split-complementary
#101C51 #512510 #3D5110
monochromatic
#05091A #060A1E #101C51 #1A2E84 #243FB7

Accessibility & contrast

On white

16.07
#101C51 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.31
#101C51 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101C51
16.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##101C51#FFFFFF#000000##FFFFFF
##101C511.0016.071.3116.07
#FFFFFF16.071.0021.001.00
#0000001.3121.001.0021.00
##FFFFFF16.071.0021.001.00

Color blindness preview

Protanopia (red-blind)
#002453
Deuteranopia (green-blind)
#001E50
Tritanopia (blue-blind)
#002933
Achromatopsia (no color)
#212121

Design tokens & code

CSS
--color: #101c51;
/* rgb */ color: rgb(16, 28, 81);
/* oklch */ color: oklch(25.5% 0.098 268.6);
Tailwind
colors: {
  custom: {
    50: '#595782',
    500: '#101c51',
    950: '#000000',
  },
}
SCSS
$custom: #101c51;
$custom-light: #595782;
$custom-dark: #000000;
JSON
{
  "hex": "#101c51",
  "rgb": {
    "r": 16,
    "g": 28,
    "b": 81
  },
  "hsl": {
    "h": 228.923,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.25478,
    "c": 0.09806,
    "h": 268.6
  },
  "luminance": 0.01535
}

Semantic roles & 50–950 ramp

primary
#101C51
secondary
#8B7A32
accent
#CA3EEA
background
#F5F5F8
surface
#E9E9EF
border
#C5C5CA
text
#04030A
muted
#79787C

Preview Lab

Preview with #101C51

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

Preview Lab → · Contrast checker → · Palette generator →

#101C51 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva