#17578E#17578E

#17578E is a dark, moderate cyan. Relative luminance 0.090; OKLCH L 44.7% C 0.110 H 249.3°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX#17578E
RGBrgb(23, 87, 142)
HSLhsl(208, 72%, 32%)
HSVhsv(208, 84%, 56%)
CMYKcmyk(83.8%, 38.7%, 0%, 44.3%)
CIE-LABlab(35.89, 1.18, -35.97)
CIE-LCHlch(35.89, 35.99, 271.87°)
OKLaboklab(44.68% -0.0388 -0.1026)
OKLCHoklch(44.68% 0.11 249.3)
XYZxyz(8.6422, 8.9505, 26.8581)
Luminance0.0895 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#17578E #8E4E17
analogous
#178E89 #17578E #171C8E
triadic
#17578E #8E1757 #578E17
tetradic
#17578E #89178E #8E4E17 #1C8E17
square
#17578E #89178E #8E4E17 #1C8E17
split-complementary
#17578E #8E171C #8E8917
monochromatic
#061625 #0E3759 #17578E #2077C3 #3F96E0

Accessibility & contrast

On white

7.53
#17578E on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.79
#17578E on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17578E
7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##17578E#FFFFFF#000000##FFFFFF
##17578E1.007.532.797.53
#FFFFFF7.531.0021.001.00
#0000002.7921.001.0021.00
##FFFFFF7.531.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3D5A90
Deuteranopia (green-blind)
#2A508D
Tritanopia (blue-blind)
#00646B
Achromatopsia (no color)
#545454

Design tokens & code

CSS
--color: #17578e;
/* rgb */ color: rgb(23, 87, 142);
/* oklch */ color: oklch(44.7% 0.110 249.3);
Tailwind
colors: {
  custom: {
    50: '#6986af',
    500: '#17578e',
    950: '#000000',
  },
}
SCSS
$custom: #17578e;
$custom-light: #6986af;
$custom-dark: #000000;
JSON
{
  "hex": "#17578e",
  "rgb": {
    "r": 23,
    "g": 87,
    "b": 142
  },
  "hsl": {
    "h": 207.731,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.44682,
    "c": 0.10974,
    "h": 249.3
  },
  "luminance": 0.08952
}

Semantic roles & 50–950 ramp

primary
#17578E
secondary
#C07C40
accent
#8D39EF
background
#F6F8FA
surface
#ECEFF4
border
#C7CACE
text
#070B10
muted
#7A7C7F

Preview Lab

Preview with #17578E

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

Preview Lab → · Contrast checker → · Palette generator →

#17578E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva