#173675#173675

#173675 is a dark, moderate blue. Relative luminance 0.041; OKLCH L 35.0% C 0.115 H 262.4°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX#173675
RGBrgb(23, 54, 117)
HSLhsl(220, 67%, 27%)
HSVhsv(220, 80%, 46%)
CMYKcmyk(80.3%, 53.8%, 0%, 54.1%)
CIE-LABlab(24.01, 13.39, -39.46)
CIE-LCHlch(24.01, 41.67, 288.75°)
OKLaboklab(34.95% -0.0151 -0.1136)
OKLCHoklch(34.95% 0.115 262.4)
XYZxyz(4.8823, 4.1043, 17.3611)
Luminance0.0411 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#173675 #755617
analogous
#176575 #173675 #271775
triadic
#173675 #751736 #367517
tetradic
#173675 #751765 #755617 #177527
square
#173675 #751765 #755617 #177527
split-complementary
#173675 #752717 #657517
monochromatic
#050C1A #0D1E42 #173675 #214EA8 #3067D6

Accessibility & contrast

On white

11.53
#173675 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.82
#173675 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173675
11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##173675#FFFFFF#000000##FFFFFF
##1736751.0011.531.8211.53
#FFFFFF11.531.0021.001.00
#0000001.8221.001.0021.00
##FFFFFF11.531.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0C3E77
Deuteranopia (green-blind)
#003574
Tritanopia (blue-blind)
#004550
Achromatopsia (no color)
#393939

Design tokens & code

CSS
--color: #173675;
/* rgb */ color: rgb(23, 54, 117);
/* oklch */ color: oklch(35.0% 0.115 262.4);
Tailwind
colors: {
  custom: {
    50: '#646c9d',
    500: '#173675',
    950: '#000000',
  },
}
SCSS
$custom: #173675;
$custom-light: #646c9d;
$custom-dark: #000000;
JSON
{
  "hex": "#173675",
  "rgb": {
    "r": 23,
    "g": 54,
    "b": 117
  },
  "hsl": {
    "h": 220.213,
    "s": 67.143,
    "l": 27.451
  },
  "oklch": {
    "l": 0.34953,
    "c": 0.11461,
    "h": 262.4
  },
  "luminance": 0.04105
}

Semantic roles & 50–950 ramp

primary
#173675
secondary
#AA863D
accent
#B13EEA
background
#F6F6F9
surface
#EBEBF2
border
#C6C6CC
text
#06060E
muted
#7A7A7E

Preview Lab

Preview with #173675

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

Preview Lab → · Contrast checker → · Palette generator →

#173675 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva