#173355#173355

#173355 is a dark, moderate cyan. Relative luminance 0.032; OKLCH L 31.8% C 0.070 H 254.6°. Best body text is #FFFFFF at 12.80:1 contrast (WCAG AA passes).

Color values

HEX	#173355
RGB	rgb(23, 51, 85)
HSL	hsl(213, 57%, 21%)
HSV	hsv(213, 73%, 33%)
CMYK	cmyk(72.9%, 40%, 0%, 66.7%)
CIE-LAB	lab(20.85, 2.22, -23.73)
CIE-LCH	lch(20.85, 23.83, 275.35°)
OKLab	oklab(31.8% -0.0186 -0.0674)
OKLCH	oklch(31.8% 0.07 254.6)
XYZ	xyz(3.1763, 3.2054, 9.0439)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173355 #553917

analogous

#175255 #173355 #1A1755

triadic

#173355 #551733 #335517

tetradic

#173355 #551752 #553917 #17551A

square

#173355 #551752 #553917 #17551A

split-complementary

#173355 #551A17 #525517

monochromatic

#070E18 #0A1625 #173355 #245085 #316DB5

Accessibility & contrast

On white

12.80

#173355 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#173355 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173355

12.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173355	#FFFFFF	#000000	##FFFFFF
##173355	1.00	12.80	1.64	12.80
#FFFFFF	12.80	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#243556

Deuteranopia (green-blind)

#1B2F54

Tritanopia (blue-blind)

#003B40

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #173355;
/* rgb */ color: rgb(23, 51, 85);
/* oklch */ color: oklch(31.8% 0.070 254.6);

Tailwind

colors: {
  custom: {
    50: '#5c6a85',
    500: '#173355',
    950: '#000000',
  },
}

SCSS

$custom: #173355;
$custom-light: #5c6a85;
$custom-dark: #000000;

JSON

{
  "hex": "#173355",
  "rgb": {
    "r": 23,
    "g": 51,
    "b": 85
  },
  "hsl": {
    "h": 212.903,
    "s": 57.407,
    "l": 21.176
  },
  "oklch": {
    "l": 0.31803,
    "c": 0.06995,
    "h": 254.6
  },
  "luminance": 0.03206
}

Semantic roles & 50–950 ramp

primary

#173355

secondary

#8C683C

accent

#9B47E1

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #173355

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

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