#17588C#17588C

#17588C is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 44.8% C 0.106 H 247.7°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX#17588C
RGBrgb(23, 88, 140)
HSLhsl(207, 72%, 32%)
HSVhsv(207, 84%, 55%)
CMYKcmyk(83.6%, 37.1%, 0%, 45.1%)
CIE-LABlab(36.09, -0.27, -34.43)
CIE-LCHlch(36.09, 34.44, 269.56°)
OKLaboklab(44.8% -0.0403 -0.0981)
OKLCHoklch(44.8% 0.106 247.7)
XYZxyz(8.5749, 9.0540, 26.1015)
Luminance0.0906 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#17588C #8C4B17
analogous
#178C86 #17588C #171D8C
triadic
#17588C #8C1758 #588C17
tetradic
#17588C #86178C #8C4B17 #1D8C17
square
#17588C #86178C #8C4B17 #1D8C17
split-complementary
#17588C #8C171D #8C8617
monochromatic
#061623 #0E3757 #17588C #2079C1 #3E98DF

Accessibility & contrast

On white

7.47
#17588C on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

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

Best text color

#FFFFFF on #17588C
7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##17588C#FFFFFF#000000##FFFFFF
##17588C1.007.472.817.47
#FFFFFF7.471.0021.001.00
#0000002.8121.001.0021.00
##FFFFFF7.471.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3F5B8E
Deuteranopia (green-blind)
#2E508B
Tritanopia (blue-blind)
#00656B
Achromatopsia (no color)
#555555

Design tokens & code

CSS
--color: #17588c;
/* rgb */ color: rgb(23, 88, 140);
/* oklch */ color: oklch(44.8% 0.106 247.7);
Tailwind
colors: {
  custom: {
    50: '#6986ae',
    500: '#17588c',
    950: '#000000',
  },
}
SCSS
$custom: #17588c;
$custom-light: #6986ae;
$custom-dark: #000000;
JSON
{
  "hex": "#17588c",
  "rgb": {
    "r": 23,
    "g": 88,
    "b": 140
  },
  "hsl": {
    "h": 206.667,
    "s": 71.779,
    "l": 31.961
  },
  "oklch": {
    "l": 0.44802,
    "c": 0.10608,
    "h": 247.7
  },
  "luminance": 0.09055
}

Semantic roles & 50–950 ramp

primary
#17588C
secondary
#BF783F
accent
#8A39EF
background
#F6F8FA
surface
#ECEFF4
border
#C7CACE
text
#070B10
muted
#7A7C7F

Preview Lab

Preview with #17588C

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

Preview Lab → · Contrast checker → · Palette generator →

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