#17588F#17588F

#17588F is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 45.0% C 0.110 H 249.0°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX#17588F
RGBrgb(23, 88, 143)
HSLhsl(208, 72%, 33%)
HSVhsv(208, 84%, 56%)
CMYKcmyk(83.9%, 38.5%, 0%, 43.9%)
CIE-LABlab(36.26, 0.93, -35.98)
CIE-LCHlch(36.26, 36.00, 271.48°)
OKLaboklab(44.99% -0.0394 -0.1027)
OKLCHoklch(44.99% 0.11 249)
XYZxyz(8.7991, 9.1437, 27.2824)
Luminance0.0915 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#17588F #8F4E17
analogous
#178F8A #17588F #171C8F
triadic
#17588F #8F1758 #588F17
tetradic
#17588F #8A178F #8F4E17 #1C8F17
square
#17588F #8A178F #8F4E17 #1C8F17
split-complementary
#17588F #8F171C #8F8A17
monochromatic
#061726 #0F385A #17588F #1F78C4 #4097E0

Accessibility & contrast

On white

7.42
#17588F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.83
#17588F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17588F
7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##17588F#FFFFFF#000000##FFFFFF
##17588F1.007.422.837.42
#FFFFFF7.421.0021.001.00
#0000002.8321.001.0021.00
##FFFFFF7.421.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3E5B91
Deuteranopia (green-blind)
#2B508E
Tritanopia (blue-blind)
#00656C
Achromatopsia (no color)
#555555

Design tokens & code

CSS
--color: #17588f;
/* rgb */ color: rgb(23, 88, 143);
/* oklch */ color: oklch(45.0% 0.110 249.0);
Tailwind
colors: {
  custom: {
    50: '#6a86b0',
    500: '#17588f',
    950: '#000000',
  },
}
SCSS
$custom: #17588f;
$custom-light: #6a86b0;
$custom-dark: #000000;
JSON
{
  "hex": "#17588f",
  "rgb": {
    "r": 23,
    "g": 88,
    "b": 143
  },
  "hsl": {
    "h": 207.5,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.44992,
    "c": 0.10999,
    "h": 249
  },
  "luminance": 0.09145
}

Semantic roles & 50–950 ramp

primary
#17588F
secondary
#C17C41
accent
#8C39EF
background
#F6F8FA
surface
#ECEFF5
border
#C7CACF
text
#070B10
muted
#7A7C7F

Preview Lab

Preview with #17588F

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

Preview Lab → · Contrast checker → · Palette generator →

#17588F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva