#174B81#174B81

#174B81 is a dark, moderate cyan. Relative luminance 0.068; OKLCH L 40.9% C 0.105 H 252.7°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX#174B81
RGBrgb(23, 75, 129)
HSLhsl(211, 70%, 30%)
HSVhsv(211, 82%, 51%)
CMYKcmyk(82.2%, 41.9%, 0%, 49.4%)
CIE-LABlab(31.34, 3.81, -35.23)
CIE-LCHlch(31.34, 35.43, 276.17°)
OKLaboklab(40.87% -0.0313 -0.1007)
OKLCHoklch(40.87% 0.105 252.7)
XYZxyz(6.8304, 6.7985, 21.7169)
Luminance0.0680 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#174B81 #814D17
analogous
#178081 #174B81 #181781
triadic
#174B81 #81174B #4B8117
tetradic
#174B81 #811780 #814D17 #178118
square
#174B81 #811780 #814D17 #178118
split-complementary
#174B81 #811817 #808117
monochromatic
#050F1A #0E2D4D #174B81 #2069B5 #3788DB

Accessibility & contrast

On white

8.90
#174B81 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.36
#174B81 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #174B81
8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##174B81#FFFFFF#000000##FFFFFF
##174B811.008.902.368.90
#FFFFFF8.901.0021.001.00
#0000002.3621.001.0021.00
##FFFFFF8.901.0021.001.00

Color blindness preview

Protanopia (red-blind)
#314F83
Deuteranopia (green-blind)
#1F4580
Tritanopia (blue-blind)
#00585F
Achromatopsia (no color)
#4A4A4A

Design tokens & code

CSS
--color: #174b81;
/* rgb */ color: rgb(23, 75, 129);
/* oklch */ color: oklch(40.9% 0.105 252.7);
Tailwind
colors: {
  custom: {
    50: '#667ca6',
    500: '#174b81',
    950: '#000000',
  },
}
SCSS
$custom: #174b81;
$custom-light: #667ca6;
$custom-dark: #000000;
JSON
{
  "hex": "#174b81",
  "rgb": {
    "r": 23,
    "g": 75,
    "b": 129
  },
  "hsl": {
    "h": 210.566,
    "s": 69.737,
    "l": 29.804
  },
  "oklch": {
    "l": 0.40874,
    "c": 0.10547,
    "h": 252.7
  },
  "luminance": 0.06799
}

Semantic roles & 50–950 ramp

primary
#174B81
secondary
#B57B3E
accent
#963BED
background
#F6F7FA
surface
#EBEEF4
border
#C6C9CE
text
#07090F
muted
#7A7B7F

Preview Lab

Preview with #174B81

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

Preview Lab → · Contrast checker → · Palette generator →

#174B81 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva