#17558D#17558D

#17558D is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 44.1% C 0.111 H 250.3°. Best body text is #FFFFFF at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#17558D
RGB	rgb(23, 85, 141)
HSL	hsl(208, 72%, 32%)
HSV	hsv(208, 84%, 55%)
CMYK	cmyk(83.7%, 39.7%, 0%, 44.7%)
CIE-LAB	lab(35.20, 2.07, -36.45)
CIE-LCH	lch(35.20, 36.51, 273.26°)
OKLab	oklab(44.13% -0.0373 -0.1041)
OKLCH	oklch(44.13% 0.111 250.3)
XYZ	xyz(8.4077, 8.6012, 26.4112)
Luminance	0.0860 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17558D #8D4F17

analogous

#178D8A #17558D #171A8D

triadic

#17558D #8D1755 #558D17

tetradic

#17558D #8A178D #8D4F17 #1A8D17

square

#17558D #8A178D #8D4F17 #1A8D17

split-complementary

#17558D #8D171A #8D8A17

monochromatic

#061624 #0E3558 #17558D #2075C2 #3F93E0

Accessibility & contrast

On white

7.72

#17558D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#17558D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17558D

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17558D	#FFFFFF	#000000	##FFFFFF
##17558D	1.00	7.72	2.72	7.72
#FFFFFF	7.72	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A598F

Deuteranopia (green-blind)

#274E8C

Tritanopia (blue-blind)

#00626A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #17558d;
/* rgb */ color: rgb(23, 85, 141);
/* oklch */ color: oklch(44.1% 0.111 250.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#17558d",
  "rgb": {
    "r": 23,
    "g": 85,
    "b": 141
  },
  "hsl": {
    "h": 208.475,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.44127,
    "c": 0.11056,
    "h": 250.3
  },
  "luminance": 0.08602
}

Semantic roles & 50–950 ramp

primary

#17558D

secondary

#C07D40

accent

#8F39EF

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #17558D

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

Preview Lab → · Contrast checker → · Palette generator →