#17558F#17558F

#17558F is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.3% C 0.113 H 251.1°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#17558F
RGB	rgb(23, 85, 143)
HSL	hsl(209, 72%, 33%)
HSV	hsv(209, 84%, 56%)
CMYK	cmyk(83.9%, 40.6%, 0%, 43.9%)
CIE-LAB	lab(35.32, 2.88, -37.47)
CIE-LCH	lch(35.32, 37.58, 274.39°)
OKLab	oklab(44.26% -0.0368 -0.1071)
OKLCH	oklch(44.26% 0.113 251.1)
XYZ	xyz(8.5579, 8.6613, 27.2020)
Luminance	0.0866 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17558F #8F5117

analogous

#178F8D #17558F #17198F

triadic

#17558F #8F1755 #558F17

tetradic

#17558F #8D178F #8F5117 #198F17

square

#17558F #8D178F #8F5117 #198F17

split-complementary

#17558F #8F1719 #8F8D17

monochromatic

#061626 #0F365A #17558F #1F74C4 #4093E0

Accessibility & contrast

On white

7.69

#17558F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#17558F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17558F

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17558F	#FFFFFF	#000000	##FFFFFF
##17558F	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#395991

Deuteranopia (green-blind)

#254E8E

Tritanopia (blue-blind)

#00636B

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #17558f;
/* rgb */ color: rgb(23, 85, 143);
/* oklch */ color: oklch(44.3% 0.113 251.1);

Tailwind

colors: {
  custom: {
    50: '#6a84b0',
    500: '#17558f',
    950: '#000000',
  },
}

SCSS

$custom: #17558f;
$custom-light: #6a84b0;
$custom-dark: #000000;

JSON

{
  "hex": "#17558f",
  "rgb": {
    "r": 23,
    "g": 85,
    "b": 143
  },
  "hsl": {
    "h": 209,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.44259,
    "c": 0.11324,
    "h": 251.1
  },
  "luminance": 0.08662
}

Semantic roles & 50–950 ramp

primary

#17558F

secondary

#C17F41

accent

#9139EF

background

#F6F8FA

surface

#ECEFF5

border

#C7CACF

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #17558F

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

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