#17588F#17588F

#17588F is a dark, moderate cyan. Relative luminance 0.091; OKLCH L 45.0% C 0.110 H 249.0°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#17588F
RGB	rgb(23, 88, 143)
HSL	hsl(208, 72%, 33%)
HSV	hsv(208, 84%, 56%)
CMYK	cmyk(83.9%, 38.5%, 0%, 43.9%)
CIE-LAB	lab(36.26, 0.93, -35.98)
CIE-LCH	lch(36.26, 36.00, 271.48°)
OKLab	oklab(44.99% -0.0394 -0.1027)
OKLCH	oklch(44.99% 0.11 249)
XYZ	xyz(8.7991, 9.1437, 27.2824)
Luminance	0.0915 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17588F #8F4E17

analogous

#178F8A #17588F #171C8F

triadic

#17588F #8F1758 #588F17

tetradic

#17588F #8A178F #8F4E17 #1C8F17

square

#17588F #8A178F #8F4E17 #1C8F17

split-complementary

#17588F #8F171C #8F8A17

monochromatic

#061726 #0F385A #17588F #1F78C4 #4097E0

Accessibility & contrast

On white

7.42

#17588F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#17588F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17588F

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17588F	#FFFFFF	#000000	##FFFFFF
##17588F	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E5B91

Deuteranopia (green-blind)

#2B508E

Tritanopia (blue-blind)

#00656C

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #17588f;
/* rgb */ color: rgb(23, 88, 143);
/* oklch */ color: oklch(45.0% 0.110 249.0);

Tailwind

colors: {
  custom: {
    50: '#6a86b0',
    500: '#17588f',
    950: '#000000',
  },
}

SCSS

$custom: #17588f;
$custom-light: #6a86b0;
$custom-dark: #000000;

JSON

{
  "hex": "#17588f",
  "rgb": {
    "r": 23,
    "g": 88,
    "b": 143
  },
  "hsl": {
    "h": 207.5,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.44992,
    "c": 0.10999,
    "h": 249
  },
  "luminance": 0.09145
}

Semantic roles & 50–950 ramp

primary

#17588F

secondary

#C17C41

accent

#8C39EF

background

#F6F8FA

surface

#ECEFF5

border

#C7CACF

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #17588F

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

Preview Lab → · Contrast checker → · Palette generator →