#173558#173558

#173558 is a dark, moderate cyan. Relative luminance 0.034; OKLCH L 32.5% C 0.072 H 253.9°. Best body text is #FFFFFF at 12.45:1 contrast (WCAG AA passes).

Color values

HEX	#173558
RGB	rgb(23, 53, 88)
HSL	hsl(212, 59%, 22%)
HSV	hsv(212, 74%, 35%)
CMYK	cmyk(73.9%, 39.8%, 0%, 65.5%)
CIE-LAB	lab(21.70, 2.04, -24.37)
CIE-LCH	lch(21.70, 24.46, 274.80°)
OKLab	oklab(32.53% -0.02 -0.0693)
OKLCH	oklch(32.53% 0.072 253.9)
XYZ	xyz(3.3873, 3.4326, 9.7147)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173558 #583A17

analogous

#175658 #173558 #1A1758

triadic

#173558 #581735 #355817

tetradic

#173558 #581756 #583A17 #17581A

square

#173558 #581756 #583A17 #17581A

split-complementary

#173558 #581A17 #565817

monochromatic

#060F18 #0A1827 #173558 #245289 #306FB9

Accessibility & contrast

On white

12.45

#173558 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#173558 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173558

12.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173558	#FFFFFF	#000000	##FFFFFF
##173558	1.00	12.45	1.69	12.45
#FFFFFF	12.45	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#253759

Deuteranopia (green-blind)

#1C3157

Tritanopia (blue-blind)

#003D42

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #173558;
/* rgb */ color: rgb(23, 53, 88);
/* oklch */ color: oklch(32.5% 0.072 253.9);

Tailwind

colors: {
  custom: {
    50: '#5d6b87',
    500: '#173558',
    950: '#000000',
  },
}

SCSS

$custom: #173558;
$custom-light: #5d6b87;
$custom-dark: #000000;

JSON

{
  "hex": "#173558",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 88
  },
  "hsl": {
    "h": 212.308,
    "s": 58.559,
    "l": 21.765
  },
  "oklch": {
    "l": 0.32527,
    "c": 0.07211,
    "h": 253.9
  },
  "luminance": 0.03433
}

Semantic roles & 50–950 ramp

primary

#173558

secondary

#8F693C

accent

#9A46E2

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#05060B

muted

#797A7C

Preview Lab

Preview with #173558

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

Preview Lab → · Contrast checker → · Palette generator →