#101851#101851

#101851 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.6% C 0.104 H 270.4°. Best body text is #FFFFFF at 16.51:1 contrast (WCAG AA passes).

Color values

HEX#101851
RGBrgb(16, 24, 81)
HSLhsl(233, 67%, 19%)
HSVhsv(233, 80%, 32%)
CMYKcmyk(80.2%, 70.4%, 0%, 68.2%)
CIE-LABlab(11.67, 19.34, -35.84)
CIE-LCHlch(11.67, 40.73, 298.35°)
OKLaboklab(24.63% 0.0008 -0.1036)
OKLCHoklch(24.63% 0.104 270.4)
XYZxyz(2.0250, 1.3573, 7.9382)
Luminance0.0136 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#101851 #514910
analogous
#103951 #101851 #291051
triadic
#101851 #511018 #185110
tetradic
#101851 #511039 #514910 #105129
square
#101851 #511039 #514910 #105129
split-complementary
#101851 #512910 #395110
monochromatic
#05081A #06091E #101851 #1A2784 #2436B7

Accessibility & contrast

On white

16.51
#101851 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.27
#101851 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101851
16.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##101851#FFFFFF#000000##FFFFFF
##1018511.0016.511.2716.51
#FFFFFF16.511.0021.001.00
#0000001.2721.001.0021.00
##FFFFFF16.511.0021.001.00

Color blindness preview

Protanopia (red-blind)
#002253
Deuteranopia (green-blind)
#001C50
Tritanopia (blue-blind)
#002732
Achromatopsia (no color)
#1F1F1F

Design tokens & code

CSS
--color: #101851;
/* rgb */ color: rgb(16, 24, 81);
/* oklch */ color: oklch(24.6% 0.104 270.4);
Tailwind
colors: {
  custom: {
    50: '#5a5482',
    500: '#101851',
    950: '#000000',
  },
}
SCSS
$custom: #101851;
$custom-light: #5a5482;
$custom-dark: #000000;
JSON
{
  "hex": "#101851",
  "rgb": {
    "r": 16,
    "g": 24,
    "b": 81
  },
  "hsl": {
    "h": 232.615,
    "s": 67.01,
    "l": 19.02
  },
  "oklch": {
    "l": 0.24625,
    "c": 0.10361,
    "h": 270.4
  },
  "luminance": 0.01358
}

Semantic roles & 50–950 ramp

primary
#101851
secondary
#8B8032
accent
#D53EEA
background
#F5F4F8
surface
#E9E7EF
border
#C5C3CA
text
#04020A
muted
#79787C

Preview Lab

Preview with #101851

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

Preview Lab → · Contrast checker → · Palette generator →

#101851 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva