#17508A#17508A

#17508A is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.7% C 0.112 H 252.6°. Best body text is #FFFFFF at 8.23:1 contrast (WCAG AA passes).

Color values

HEX#17508A
RGBrgb(23, 80, 138)
HSLhsl(210, 71%, 32%)
HSVhsv(210, 83%, 54%)
CMYKcmyk(83.3%, 42%, 0%, 45.9%)
CIE-LABlab(33.46, 4.15, -37.39)
CIE-LCHlch(33.46, 37.62, 276.33°)
OKLaboklab(42.71% -0.0336 -0.107)
OKLCHoklch(42.71% 0.112 252.6)
XYZxyz(7.8077, 7.7535, 25.1249)
Luminance0.0775 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#17508A #8A5117
analogous
#178A8A #17508A #18178A
triadic
#17508A #8A1750 #508A17
tetradic
#17508A #8A178A #8A5117 #178A18
square
#17508A #8A178A #8A5117 #178A18
split-complementary
#17508A #8A1817 #8A8A17
monochromatic
#061321 #0E3256 #17508A #206EBE #3D8DDF

Accessibility & contrast

On white

8.23
#17508A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.55
#17508A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17508A
8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##17508A#FFFFFF#000000##FFFFFF
##17508A1.008.232.558.23
#FFFFFF8.231.0021.001.00
#0000002.5521.001.0021.00
##FFFFFF8.231.0021.001.00

Color blindness preview

Protanopia (red-blind)
#33548C
Deuteranopia (green-blind)
#204A89
Tritanopia (blue-blind)
#005E66
Achromatopsia (no color)
#4F4F4F

Design tokens & code

CSS
--color: #17508a;
/* rgb */ color: rgb(23, 80, 138);
/* oklch */ color: oklch(42.7% 0.112 252.6);
Tailwind
colors: {
  custom: {
    50: '#6880ac',
    500: '#17508a',
    950: '#000000',
  },
}
SCSS
$custom: #17508a;
$custom-light: #6880ac;
$custom-dark: #000000;
JSON
{
  "hex": "#17508a",
  "rgb": {
    "r": 23,
    "g": 80,
    "b": 138
  },
  "hsl": {
    "h": 210.261,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.42708,
    "c": 0.11211,
    "h": 252.6
  },
  "luminance": 0.07754
}

Semantic roles & 50–950 ramp

primary
#17508A
secondary
#BE7F3F
accent
#953AEE
background
#F6F7FA
surface
#ECEEF4
border
#C7C9CE
text
#070A10
muted
#7A7C7F

Preview Lab

Preview with #17508A

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

Preview Lab → · Contrast checker → · Palette generator →

#17508A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva