#101B55#101B55

#101B55 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.7% C 0.106 H 269.1°. Best body text is #FFFFFF at 16.03:1 contrast (WCAG AA passes).

Color values

HEX#101B55
RGBrgb(16, 27, 85)
HSLhsl(230, 68%, 20%)
HSVhsv(230, 81%, 33%)
CMYKcmyk(81.2%, 68.2%, 0%, 66.7%)
CIE-LABlab(12.92, 18.80, -36.52)
CIE-LCHlch(12.92, 41.07, 297.23°)
OKLaboklab(25.67% -0.0017 -0.1056)
OKLCHoklch(25.67% 0.106 269.1)
XYZxyz(2.2447, 1.5497, 8.7734)
Luminance0.0155 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#101B55 #554A10
analogous
#103E55 #101B55 #281055
triadic
#101B55 #55101B #1B5510
tetradic
#101B55 #55103E #554A10 #105528
square
#101B55 #55103E #554A10 #105528
split-complementary
#101B55 #552810 #3E5510
monochromatic
#05081A #060B21 #101B55 #1A2B89 #233CBC

Accessibility & contrast

On white

16.03
#101B55 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.31
#101B55 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B55
16.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##101B55#FFFFFF#000000##FFFFFF
##101B551.0016.031.3116.03
#FFFFFF16.031.0021.001.00
#0000001.3121.001.0021.00
##FFFFFF16.031.0021.001.00

Color blindness preview

Protanopia (red-blind)
#002557
Deuteranopia (green-blind)
#001E54
Tritanopia (blue-blind)
#002A35
Achromatopsia (no color)
#212121

Design tokens & code

CSS
--color: #101b55;
/* rgb */ color: rgb(16, 27, 85);
/* oklch */ color: oklch(25.7% 0.106 269.1);
Tailwind
colors: {
  custom: {
    50: '#5b5785',
    500: '#101b55',
    950: '#000000',
  },
}
SCSS
$custom: #101b55;
$custom-light: #5b5785;
$custom-dark: #000000;
JSON
{
  "hex": "#101b55",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 85
  },
  "hsl": {
    "h": 230.435,
    "s": 68.317,
    "l": 19.804
  },
  "oklch": {
    "l": 0.25668,
    "c": 0.10558,
    "h": 269.1
  },
  "luminance": 0.0155
}

Semantic roles & 50–950 ramp

primary
#101B55
secondary
#8F8032
accent
#CF3DEB
background
#F5F5F8
surface
#E9E9EF
border
#C5C5CA
text
#04030B
muted
#79787C

Preview Lab

Preview with #101B55

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

Preview Lab → · Contrast checker → · Palette generator →

#101B55 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva