#101B5F#101B5F

#101B5F is a dark, vivid blue. Relative luminance 0.017; OKLCH L 26.7% C 0.120 H 268.9°. Best body text is #FFFFFF at 15.62:1 contrast (WCAG AA passes).

Color values

HEX#101B5F
RGBrgb(16, 27, 95)
HSLhsl(232, 71%, 22%)
HSVhsv(232, 83%, 37%)
CMYKcmyk(83.2%, 71.6%, 0%, 62.7%)
CIE-LABlab(13.94, 22.94, -41.57)
CIE-LCHlch(13.94, 47.48, 298.89°)
OKLaboklab(26.73% -0.0022 -0.1203)
OKLCHoklch(26.73% 0.12 268.9)
XYZxyz(2.6705, 1.7199, 11.0155)
Luminance0.0172 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#101B5F #5F5410
analogous
#10435F #101B5F #2D105F
triadic
#101B5F #5F101B #1B5F10
tetradic
#101B5F #5F1043 #5F5410 #105F2D
square
#101B5F #5F1043 #5F5410 #105F2D
split-complementary
#101B5F #5F2D10 #435F10
monochromatic
#04071A #070C2B #101B5F #192A93 #2239C8

Accessibility & contrast

On white

15.62
#101B5F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.34
#101B5F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101B5F
15.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##101B5F#FFFFFF#000000##FFFFFF
##101B5F1.0015.621.3415.62
#FFFFFF15.621.0021.001.00
#0000001.3421.001.0021.00
##FFFFFF15.621.0021.001.00

Color blindness preview

Protanopia (red-blind)
#002761
Deuteranopia (green-blind)
#00205E
Tritanopia (blue-blind)
#002D3A
Achromatopsia (no color)
#232323

Design tokens & code

CSS
--color: #101b5f;
/* rgb */ color: rgb(16, 27, 95);
/* oklch */ color: oklch(26.7% 0.120 268.9);
Tailwind
colors: {
  custom: {
    50: '#5e578d',
    500: '#101b5f',
    950: '#000000',
  },
}
SCSS
$custom: #101b5f;
$custom-light: #5e578d;
$custom-dark: #000000;
JSON
{
  "hex": "#101b5f",
  "rgb": {
    "r": 16,
    "g": 27,
    "b": 95
  },
  "hsl": {
    "h": 231.646,
    "s": 71.171,
    "l": 21.765
  },
  "oklch": {
    "l": 0.26731,
    "c": 0.12035,
    "h": 268.9
  },
  "luminance": 0.0172
}

Semantic roles & 50–950 ramp

primary
#101B5F
secondary
#988A33
accent
#D53AEE
background
#F5F5F8
surface
#EAE9F0
border
#C6C5CB
text
#05030C
muted
#79787D

Preview Lab

Preview with #101B5F

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

Preview Lab → · Contrast checker → · Palette generator →

#101B5F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva