#17588B#17588B

#17588B is a dark, moderate cyan. Relative luminance 0.090; OKLCH L 44.7% C 0.105 H 247.2°. Best body text is #FFFFFF at 7.49:1 contrast (WCAG AA passes).

Color values

HEX#17588B
RGBrgb(23, 88, 139)
HSLhsl(206, 72%, 32%)
HSVhsv(206, 83%, 55%)
CMYKcmyk(83.5%, 36.7%, 0%, 45.5%)
CIE-LABlab(36.03, -0.67, -33.92)
CIE-LCHlch(36.03, 33.92, 268.88°)
OKLaboklab(44.74% -0.0406 -0.0966)
OKLCHoklch(44.74% 0.105 247.2)
XYZxyz(8.5015, 9.0246, 25.7150)
Luminance0.0903 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#17588B #8B4A17
analogous
#178B84 #17588B #171E8B
triadic
#17588B #8B1758 #588B17
tetradic
#17588B #84178B #8B4A17 #1E8B17
square
#17588B #84178B #8B4A17 #1E8B17
split-complementary
#17588B #8B171E #8B8417
monochromatic
#061622 #0E3756 #17588B #2079C0 #3D98DF

Accessibility & contrast

On white

7.49
#17588B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.81
#17588B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17588B
7.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##17588B#FFFFFF#000000##FFFFFF
##17588B1.007.492.817.49
#FFFFFF7.491.0021.001.00
#0000002.8121.001.0021.00
##FFFFFF7.491.0021.001.00

Color blindness preview

Protanopia (red-blind)
#405A8D
Deuteranopia (green-blind)
#2F508A
Tritanopia (blue-blind)
#00646B
Achromatopsia (no color)
#555555

Design tokens & code

CSS
--color: #17588b;
/* rgb */ color: rgb(23, 88, 139);
/* oklch */ color: oklch(44.7% 0.105 247.2);
Tailwind
colors: {
  custom: {
    50: '#6986ad',
    500: '#17588b',
    950: '#000000',
  },
}
SCSS
$custom: #17588b;
$custom-light: #6986ad;
$custom-dark: #000000;
JSON
{
  "hex": "#17588b",
  "rgb": {
    "r": 23,
    "g": 88,
    "b": 139
  },
  "hsl": {
    "h": 206.379,
    "s": 71.605,
    "l": 31.765
  },
  "oklch": {
    "l": 0.44739,
    "c": 0.10478,
    "h": 247.2
  },
  "luminance": 0.09026
}

Semantic roles & 50–950 ramp

primary
#17588B
secondary
#BF773F
accent
#8939EE
background
#F6F8FA
surface
#ECEFF4
border
#C7CACE
text
#070B10
muted
#7A7C7F

Preview Lab

Preview with #17588B

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

Preview Lab → · Contrast checker → · Palette generator →

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