#17558F#17558F

#17558F is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.3% C 0.113 H 251.1°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX#17558F
RGBrgb(23, 85, 143)
HSLhsl(209, 72%, 33%)
HSVhsv(209, 84%, 56%)
CMYKcmyk(83.9%, 40.6%, 0%, 43.9%)
CIE-LABlab(35.32, 2.88, -37.47)
CIE-LCHlch(35.32, 37.58, 274.39°)
OKLaboklab(44.26% -0.0368 -0.1071)
OKLCHoklch(44.26% 0.113 251.1)
XYZxyz(8.5579, 8.6613, 27.2020)
Luminance0.0866 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#17558F #8F5117
analogous
#178F8D #17558F #17198F
triadic
#17558F #8F1755 #558F17
tetradic
#17558F #8D178F #8F5117 #198F17
square
#17558F #8D178F #8F5117 #198F17
split-complementary
#17558F #8F1719 #8F8D17
monochromatic
#061626 #0F365A #17558F #1F74C4 #4093E0

Accessibility & contrast

On white

7.69
#17558F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.73
#17558F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17558F
7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##17558F#FFFFFF#000000##FFFFFF
##17558F1.007.692.737.69
#FFFFFF7.691.0021.001.00
#0000002.7321.001.0021.00
##FFFFFF7.691.0021.001.00

Color blindness preview

Protanopia (red-blind)
#395991
Deuteranopia (green-blind)
#254E8E
Tritanopia (blue-blind)
#00636B
Achromatopsia (no color)
#535353

Design tokens & code

CSS
--color: #17558f;
/* rgb */ color: rgb(23, 85, 143);
/* oklch */ color: oklch(44.3% 0.113 251.1);
Tailwind
colors: {
  custom: {
    50: '#6a84b0',
    500: '#17558f',
    950: '#000000',
  },
}
SCSS
$custom: #17558f;
$custom-light: #6a84b0;
$custom-dark: #000000;
JSON
{
  "hex": "#17558f",
  "rgb": {
    "r": 23,
    "g": 85,
    "b": 143
  },
  "hsl": {
    "h": 209,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.44259,
    "c": 0.11324,
    "h": 251.1
  },
  "luminance": 0.08662
}

Semantic roles & 50–950 ramp

primary
#17558F
secondary
#C17F41
accent
#9139EF
background
#F6F8FA
surface
#ECEFF5
border
#C7CACF
text
#070A10
muted
#7A7C7F

Preview Lab

Preview with #17558F

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

Preview Lab → · Contrast checker → · Palette generator →

#17558F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva