#173C94#173C94

#173C94 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.9% C 0.151 H 263.6°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#173C94
RGB	rgb(23, 60, 148)
HSL	hsl(222, 73%, 34%)
HSV	hsv(222, 84%, 58%)
CMYK	cmyk(84.5%, 59.5%, 0%, 42%)
CIE-LAB	lab(28.25, 21.92, -51.94)
CIE-LCH	lch(28.25, 56.37, 292.89°)
OKLab	oklab(38.94% -0.0168 -0.1501)
OKLCH	oklch(38.94% 0.151 263.6)
XYZ	xyz(7.3126, 5.5511, 28.6973)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173C94 #946F17

analogous

#177A94 #173C94 #301794

triadic

#173C94 #94173C #3C9417

tetradic

#173C94 #94177A #946F17 #179430

square

#173C94 #94177A #946F17 #179430

split-complementary

#173C94 #943017 #7A9417

monochromatic

#07112A #0F275F #173C94 #1F51C9 #4472E2

Accessibility & contrast

On white

9.95

#173C94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#173C94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173C94

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173C94	#FFFFFF	#000000	##FFFFFF
##173C94	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004997

Deuteranopia (green-blind)

#003D92

Tritanopia (blue-blind)

#005262

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #173c94;
/* rgb */ color: rgb(23, 60, 148);
/* oklch */ color: oklch(38.9% 0.151 263.6);

Tailwind

colors: {
  custom: {
    50: '#6c71b4',
    500: '#173c94',
    950: '#000000',
  },
}

SCSS

$custom: #173c94;
$custom-light: #6c71b4;
$custom-dark: #000000;

JSON

{
  "hex": "#173c94",
  "rgb": {
    "r": 23,
    "g": 60,
    "b": 148
  },
  "hsl": {
    "h": 222.24,
    "s": 73.099,
    "l": 33.529
  },
  "oklch": {
    "l": 0.38942,
    "c": 0.15109,
    "h": 263.6
  },
  "luminance": 0.05552
}

Semantic roles & 50–950 ramp

primary

#173C94

secondary

#C39D44

accent

#B938F0

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #173C94

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

Preview Lab → · Contrast checker → · Palette generator →