#171D74#171D74

#171D74 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.8% C 0.145 H 270.7°. Best body text is #FFFFFF at 14.34:1 contrast (WCAG AA passes).

Color values

HEX#171D74
RGBrgb(23, 29, 116)
HSLhsl(236, 67%, 27%)
HSVhsv(236, 80%, 45%)
CMYKcmyk(80.2%, 75%, 0%, 54.5%)
CIE-LABlab(17.09, 30.47, -50.13)
CIE-LCHlch(17.09, 58.66, 301.29°)
OKLaboklab(29.79% 0.0018 -0.1451)
OKLCHoklch(29.79% 0.145 270.7)
XYZxyz(3.9440, 2.3214, 16.7598)
Luminance0.0232 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#171D74 #746E17
analogous
#174C74 #171D74 #401774
triadic
#171D74 #74171D #1D7417
tetradic
#171D74 #74174C #746E17 #177440
square
#171D74 #74174C #746E17 #177440
split-complementary
#171D74 #744017 #4C7417
monochromatic
#05061A #0D1041 #171D74 #212AA7 #303AD6

Accessibility & contrast

On white

14.34
#171D74 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.46
#171D74 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171D74
14.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##171D74#FFFFFF#000000##FFFFFF
##171D741.0014.341.4614.34
#FFFFFF14.341.0021.001.00
#0000001.4621.001.0021.00
##FFFFFF14.341.0021.001.00

Color blindness preview

Protanopia (red-blind)
#002F77
Deuteranopia (green-blind)
#002672
Tritanopia (blue-blind)
#003646
Achromatopsia (no color)
#2A2A2A

Design tokens & code

CSS
--color: #171d74;
/* rgb */ color: rgb(23, 29, 116);
/* oklch */ color: oklch(29.8% 0.145 270.7);
Tailwind
colors: {
  custom: {
    50: '#66599d',
    500: '#171d74',
    950: '#000000',
  },
}
SCSS
$custom: #171d74;
$custom-light: #66599d;
$custom-dark: #000000;
JSON
{
  "hex": "#171d74",
  "rgb": {
    "r": 23,
    "g": 29,
    "b": 116
  },
  "hsl": {
    "h": 236.129,
    "s": 66.906,
    "l": 27.255
  },
  "oklch": {
    "l": 0.29793,
    "c": 0.14516,
    "h": 270.7
  },
  "luminance": 0.02322
}

Semantic roles & 50–950 ramp

primary
#171D74
secondary
#A9A23D
accent
#DF3EEA
background
#F6F5F9
surface
#EBE9F2
border
#C6C5CC
text
#07030E
muted
#7A787E

Preview Lab

Preview with #171D74

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

Preview Lab → · Contrast checker → · Palette generator →

#171D74 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva