#101F55#101F55

#101F55 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.5% C 0.100 H 267.3°. Best body text is #FFFFFF at 15.56:1 contrast (WCAG AA passes).

Color values

HEX#101F55
RGBrgb(16, 31, 85)
HSLhsl(227, 68%, 20%)
HSVhsv(227, 81%, 33%)
CMYKcmyk(81.2%, 63.5%, 0%, 66.7%)
CIE-LABlab(14.09, 15.80, -34.61)
CIE-LCHlch(14.09, 38.05, 294.55°)
OKLaboklab(26.54% -0.0048 -0.0999)
OKLCHoklch(26.54% 0.1 267.3)
XYZxyz(2.3428, 1.7458, 8.8061)
Luminance0.0175 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#101F55 #554610
analogous
#104155 #101F55 #241055
triadic
#101F55 #55101F #1F5510
tetradic
#101F55 #551041 #554610 #105524
square
#101F55 #551041 #554610 #105524
split-complementary
#101F55 #552410 #415510
monochromatic
#05091A #060C21 #101F55 #1A3289 #2345BC

Accessibility & contrast

On white

15.56
#101F55 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.35
#101F55 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101F55
15.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##101F55#FFFFFF#000000##FFFFFF
##101F551.0015.561.3515.56
#FFFFFF15.561.0021.001.00
#0000001.3521.001.0021.00
##FFFFFF15.561.0021.001.00

Color blindness preview

Protanopia (red-blind)
#002757
Deuteranopia (green-blind)
#002154
Tritanopia (blue-blind)
#002D36
Achromatopsia (no color)
#242424

Design tokens & code

CSS
--color: #101f55;
/* rgb */ color: rgb(16, 31, 85);
/* oklch */ color: oklch(26.5% 0.100 267.3);
Tailwind
colors: {
  custom: {
    50: '#5a5a85',
    500: '#101f55',
    950: '#000000',
  },
}
SCSS
$custom: #101f55;
$custom-light: #5a5a85;
$custom-dark: #000000;
JSON
{
  "hex": "#101f55",
  "rgb": {
    "r": 16,
    "g": 31,
    "b": 85
  },
  "hsl": {
    "h": 226.957,
    "s": 68.317,
    "l": 19.804
  },
  "oklch": {
    "l": 0.26537,
    "c": 0.10001,
    "h": 267.3
  },
  "luminance": 0.01746
}

Semantic roles & 50–950 ramp

primary
#101F55
secondary
#8F7A32
accent
#C53DEB
background
#F5F5F8
surface
#E9E9EF
border
#C5C5CA
text
#04030B
muted
#79787C

Preview Lab

Preview with #101F55

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

Preview Lab → · Contrast checker → · Palette generator →

#101F55 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva