#17557D#17557D

#17557D is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.1% C 0.090 H 242.1°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX#17557D
RGBrgb(23, 85, 125)
HSLhsl(204, 69%, 29%)
HSVhsv(204, 82%, 49%)
CMYKcmyk(81.6%, 32%, 0%, 51%)
CIE-LABlab(34.31, -4.30, -28.05)
CIE-LCHlch(34.31, 28.38, 261.27°)
OKLaboklab(43.13% -0.0421 -0.0795)
OKLCHoklch(43.13% 0.09 242.1)
XYZxyz(7.3021, 8.1589, 20.5880)
Luminance0.0816 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#17557D #7D3F17
analogous
#177D72 #17557D #17227D
triadic
#17557D #7D1755 #557D17
tetradic
#17557D #72177D #7D3F17 #227D17
square
#17557D #72177D #7D3F17 #227D17
split-complementary
#17557D #7D1722 #7D7217
monochromatic
#05121A #0D3249 #17557D #2178B1 #3599DA

Accessibility & contrast

On white

7.98
#17557D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.63
#17557D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17557D
7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##17557D#FFFFFF#000000##FFFFFF
##17557D1.007.982.637.98
#FFFFFF7.981.0021.001.00
#0000002.6321.001.0021.00
##FFFFFF7.981.0021.001.00

Color blindness preview

Protanopia (red-blind)
#42567F
Deuteranopia (green-blind)
#344C7C
Tritanopia (blue-blind)
#005F63
Achromatopsia (no color)
#515151

Design tokens & code

CSS
--color: #17557d;
/* rgb */ color: rgb(23, 85, 125);
/* oklch */ color: oklch(43.1% 0.090 242.1);
Tailwind
colors: {
  custom: {
    50: '#6684a3',
    500: '#17557d',
    950: '#000000',
  },
}
SCSS
$custom: #17557d;
$custom-light: #6684a3;
$custom-dark: #000000;
JSON
{
  "hex": "#17557d",
  "rgb": {
    "r": 23,
    "g": 85,
    "b": 125
  },
  "hsl": {
    "h": 203.529,
    "s": 68.919,
    "l": 29.02
  },
  "oklch": {
    "l": 0.43133,
    "c": 0.08996,
    "h": 242.1
  },
  "luminance": 0.0816
}

Semantic roles & 50–950 ramp

primary
#17557D
secondary
#B26B3E
accent
#813CEC
background
#F6F8FA
surface
#EBEFF3
border
#C6CACD
text
#070A0F
muted
#7A7C7F

Preview Lab

Preview with #17557D

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

Preview Lab → · Contrast checker → · Palette generator →

#17557D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva