#101536#101536

#101536 is a very dark, moderate blue. Relative luminance 0.009; OKLCH L 21.3% C 0.064 H 273.2°. Best body text is #FFFFFF at 17.76:1 contrast (WCAG AA passes).

Color values

HEX#101536
RGBrgb(16, 21, 54)
HSLhsl(232, 54%, 14%)
HSVhsv(232, 70%, 21%)
CMYKcmyk(70.4%, 61.1%, 0%, 78.8%)
CIE-LABlab(8.24, 10.21, -22.42)
CIE-LCHlch(8.24, 24.64, 294.48°)
OKLaboklab(21.29% 0.0036 -0.0642)
OKLCHoklch(21.29% 0.064 273.2)
XYZxyz(1.1475, 0.9127, 3.6050)
Luminance0.0091 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#101536 #363110
analogous
#102836 #101536 #1E1036
triadic
#101536 #361015 #153610
tetradic
#101536 #361028 #363110 #10361E
square
#101536 #361028 #363110 #10361E
split-complementary
#101536 #361E10 #283610
monochromatic
#070918 #070918 #101536 #1E2765 #2C3A94

Accessibility & contrast

On white

17.76
#101536 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.18
#101536 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101536
17.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##101536#FFFFFF#000000##FFFFFF
##1015361.0017.761.1817.76
#FFFFFF17.761.0021.001.00
#0000001.1821.001.0021.00
##FFFFFF17.761.0021.001.00

Color blindness preview

Protanopia (red-blind)
#041A37
Deuteranopia (green-blind)
#001635
Tritanopia (blue-blind)
#001D23
Achromatopsia (no color)
#181818

Design tokens & code

CSS
--color: #101536;
/* rgb */ color: rgb(16, 21, 54);
/* oklch */ color: oklch(21.3% 0.064 273.2);
Tailwind
colors: {
  custom: {
    50: '#53516d',
    500: '#101536',
    950: '#000000',
  },
}
SCSS
$custom: #101536;
$custom-light: #53516d;
$custom-dark: #000000;
JSON
{
  "hex": "#101536",
  "rgb": {
    "r": 16,
    "g": 21,
    "b": 54
  },
  "hsl": {
    "h": 232.105,
    "s": 54.286,
    "l": 13.725
  },
  "oklch": {
    "l": 0.2129,
    "c": 0.06433,
    "h": 273.2
  },
  "luminance": 0.00913
}

Semantic roles & 50–950 ramp

primary
#101536
secondary
#706832
accent
#CA4ADE
background
#F4F4F6
surface
#E7E7EB
border
#C3C3C6
text
#020207
muted
#78787A

Preview Lab

Preview with #101536

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

Preview Lab → · Contrast checker → · Palette generator →

#101536 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva