#17558E#17558E

#17558E is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 44.2% C 0.112 H 250.7°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#17558E
RGB	rgb(23, 85, 142)
HSL	hsl(209, 72%, 32%)
HSV	hsv(209, 84%, 56%)
CMYK	cmyk(83.8%, 40.1%, 0%, 44.3%)
CIE-LAB	lab(35.26, 2.48, -36.96)
CIE-LCH	lch(35.26, 37.04, 273.83°)
OKLab	oklab(44.19% -0.037 -0.1056)
OKLCH	oklch(44.19% 0.112 250.7)
XYZ	xyz(8.4825, 8.6311, 26.8048)
Luminance	0.0863 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17558E #8E5017

analogous

#178E8B #17558E #171A8E

triadic

#17558E #8E1755 #558E17

tetradic

#17558E #8B178E #8E5017 #1A8E17

square

#17558E #8B178E #8E5017 #1A8E17

split-complementary

#17558E #8E171A #8E8B17

monochromatic

#061625 #0E3559 #17558E #2075C3 #3F93E0

Accessibility & contrast

On white

7.70

#17558E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#17558E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17558E

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17558E	#FFFFFF	#000000	##FFFFFF
##17558E	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#395990

Deuteranopia (green-blind)

#264E8D

Tritanopia (blue-blind)

#00636A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #17558e;
/* rgb */ color: rgb(23, 85, 142);
/* oklch */ color: oklch(44.2% 0.112 250.7);

Tailwind

colors: {
  custom: {
    50: '#6984af',
    500: '#17558e',
    950: '#000000',
  },
}

SCSS

$custom: #17558e;
$custom-light: #6984af;
$custom-dark: #000000;

JSON

{
  "hex": "#17558e",
  "rgb": {
    "r": 23,
    "g": 85,
    "b": 142
  },
  "hsl": {
    "h": 208.739,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.44193,
    "c": 0.1119,
    "h": 250.7
  },
  "luminance": 0.08632
}

Semantic roles & 50–950 ramp

primary

#17558E

secondary

#C07E40

accent

#9039EF

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #17558E

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

Preview Lab → · Contrast checker → · Palette generator →