#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
RGB	rgb(23, 85, 125)
HSL	hsl(204, 69%, 29%)
HSV	hsv(204, 82%, 49%)
CMYK	cmyk(81.6%, 32%, 0%, 51%)
CIE-LAB	lab(34.31, -4.30, -28.05)
CIE-LCH	lch(34.31, 28.38, 261.27°)
OKLab	oklab(43.13% -0.0421 -0.0795)
OKLCH	oklch(43.13% 0.09 242.1)
XYZ	xyz(7.3021, 8.1589, 20.5880)
Luminance	0.0816 (WCAG relative)
Temperature	cool
Family	cyan

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
##17557D	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

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 →