#101550#101550

#101550 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.9% C 0.106 H 271.6°. Best body text is #FFFFFF at 16.86:1 contrast (WCAG AA passes).

Color values

HEX#101550
RGBrgb(16, 21, 80)
HSLhsl(235, 67%, 19%)
HSVhsv(235, 80%, 31%)
CMYKcmyk(80%, 73.7%, 0%, 68.6%)
CIE-LABlab(10.74, 21.12, -36.68)
CIE-LCHlch(10.74, 42.32, 299.93°)
OKLaboklab(23.92% 0.003 -0.1061)
OKLCHoklch(23.92% 0.106 271.6)
XYZxyz(1.9293, 1.2255, 7.7227)
Luminance0.0123 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#101550 #504B10
analogous
#103550 #101550 #2B1050
triadic
#101550 #501015 #155010
tetradic
#101550 #501035 #504B10 #10502B
square
#101550 #501035 #504B10 #10502B
split-complementary
#101550 #502B10 #355010
monochromatic
#05071A #06081D #101550 #1A2283 #2430B6

Accessibility & contrast

On white

16.86
#101550 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.25
#101550 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #101550
16.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##101550#FFFFFF#000000##FFFFFF
##1015501.0016.861.2516.86
#FFFFFF16.861.0021.001.00
#0000001.2521.001.0021.00
##FFFFFF16.861.0021.001.00

Color blindness preview

Protanopia (red-blind)
#002052
Deuteranopia (green-blind)
#001A4F
Tritanopia (blue-blind)
#002530
Achromatopsia (no color)
#1D1D1D

Design tokens & code

CSS
--color: #101550;
/* rgb */ color: rgb(16, 21, 80);
/* oklch */ color: oklch(23.9% 0.106 271.6);
Tailwind
colors: {
  custom: {
    50: '#5a5282',
    500: '#101550',
    950: '#000000',
  },
}
SCSS
$custom: #101550;
$custom-light: #5a5282;
$custom-dark: #000000;
JSON
{
  "hex": "#101550",
  "rgb": {
    "r": 16,
    "g": 21,
    "b": 80
  },
  "hsl": {
    "h": 235.313,
    "s": 66.667,
    "l": 18.824
  },
  "oklch": {
    "l": 0.23916,
    "c": 0.10611,
    "h": 271.6
  },
  "luminance": 0.01226
}

Semantic roles & 50–950 ramp

primary
#101550
secondary
#8A8332
accent
#DC3EEA
background
#F5F4F8
surface
#E9E7EF
border
#C5C3CA
text
#04020A
muted
#79787C

Preview Lab

Preview with #101550

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

Preview Lab → · Contrast checker → · Palette generator →

#101550 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva