#17458A#17458A

#17458A is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.1% C 0.126 H 258.8°. Best body text is #FFFFFF at 9.31:1 contrast (WCAG AA passes).

Color values

HEX#17458A
RGBrgb(23, 69, 138)
HSLhsl(216, 71%, 32%)
HSVhsv(216, 83%, 54%)
CMYKcmyk(83.3%, 50%, 0%, 45.9%)
CIE-LABlab(30.09, 11.59, -42.80)
CIE-LCHlch(30.09, 44.34, 285.15°)
OKLaboklab(40.1% -0.0243 -0.1231)
OKLCHoklch(40.1% 0.126 258.8)
XYZxyz(7.0672, 6.2725, 24.8781)
Luminance0.0627 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#17458A #8A5C17
analogous
#177F8A #17458A #23178A
triadic
#17458A #8A1745 #458A17
tetradic
#17458A #8A177F #8A5C17 #178A23
square
#17458A #8A177F #8A5C17 #178A23
split-complementary
#17458A #8A2317 #7F8A17
monochromatic
#061121 #0E2B56 #17458A #205FBE #3D7EDF

Accessibility & contrast

On white

9.31
#17458A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.25
#17458A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17458A
9.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##17458A#FFFFFF#000000##FFFFFF
##17458A1.009.312.259.31
#FFFFFF9.311.0021.001.00
#0000002.2521.001.0021.00
##FFFFFF9.311.0021.001.00

Color blindness preview

Protanopia (red-blind)
#1C4C8D
Deuteranopia (green-blind)
#004289
Tritanopia (blue-blind)
#005661
Achromatopsia (no color)
#474747

Design tokens & code

CSS
--color: #17458a;
/* rgb */ color: rgb(23, 69, 138);
/* oklch */ color: oklch(40.1% 0.126 258.8);
Tailwind
colors: {
  custom: {
    50: '#6978ad',
    500: '#17458a',
    950: '#000000',
  },
}
SCSS
$custom: #17458a;
$custom-light: #6978ad;
$custom-dark: #000000;
JSON
{
  "hex": "#17458a",
  "rgb": {
    "r": 23,
    "g": 69,
    "b": 138
  },
  "hsl": {
    "h": 216,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.40095,
    "c": 0.1255,
    "h": 258.8
  },
  "luminance": 0.06273
}

Semantic roles & 50–950 ramp

primary
#17458A
secondary
#BE8B3F
accent
#A63AEE
background
#F6F7FA
surface
#ECEDF4
border
#C7C8CE
text
#070810
muted
#7A7B7F

Preview Lab

Preview with #17458A

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

Preview Lab → · Contrast checker → · Palette generator →

#17458A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva