#101555#101555

#101555 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.5% C 0.113 H 271.2°. Best body text is #FFFFFF at 16.66:1 contrast (WCAG AA passes).

Color values

HEX#101555
RGBrgb(16, 21, 85)
HSLhsl(236, 68%, 20%)
HSVhsv(236, 81%, 33%)
CMYKcmyk(81.2%, 75.3%, 0%, 66.7%)
CIE-LABlab(11.29, 23.14, -39.20)
CIE-LCHlch(11.29, 45.52, 300.55°)
OKLaboklab(24.48% 0.0024 -0.1134)
OKLCHoklch(24.48% 0.113 271.2)
XYZxyz(2.1210, 1.3021, 8.7321)
Luminance0.0130 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#101555 #555010
analogous
#103855 #101555 #2D1055
triadic
#101555 #551015 #155510
tetradic
#101555 #551038 #555010 #10552D
square
#101555 #551038 #555010 #10552D
split-complementary
#101555 #552D10 #385510
monochromatic
#05061A #060821 #101555 #1A2289 #232EBC

Accessibility & contrast

On white

16.66
#101555 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.26
#101555 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101555
16.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##101555#FFFFFF#000000##FFFFFF
##1015551.0016.661.2616.66
#FFFFFF16.661.0021.001.00
#0000001.2621.001.0021.00
##FFFFFF16.661.0021.001.00

Color blindness preview

Protanopia (red-blind)
#002157
Deuteranopia (green-blind)
#001B54
Tritanopia (blue-blind)
#002733
Achromatopsia (no color)
#1E1E1E

Design tokens & code

CSS
--color: #101555;
/* rgb */ color: rgb(16, 21, 85);
/* oklch */ color: oklch(24.5% 0.113 271.2);
Tailwind
colors: {
  custom: {
    50: '#5b5286',
    500: '#101555',
    950: '#000000',
  },
}
SCSS
$custom: #101555;
$custom-light: #5b5286;
$custom-dark: #000000;
JSON
{
  "hex": "#101555",
  "rgb": {
    "r": 16,
    "g": 21,
    "b": 85
  },
  "hsl": {
    "h": 235.652,
    "s": 68.317,
    "l": 19.804
  },
  "oklch": {
    "l": 0.24478,
    "c": 0.11345,
    "h": 271.2
  },
  "luminance": 0.01302
}

Semantic roles & 50–950 ramp

primary
#101555
secondary
#8F8832
accent
#DF3DEB
background
#F5F4F8
surface
#E9E7EF
border
#C5C3CA
text
#05020B
muted
#79787C

Preview Lab

Preview with #101555

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

Preview Lab → · Contrast checker → · Palette generator →

#101555 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva