#173D94#173D94

#173D94 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.2% C 0.150 H 263.3°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#173D94
RGB	rgb(23, 61, 148)
HSL	hsl(222, 73%, 34%)
HSV	hsv(222, 84%, 58%)
CMYK	cmyk(84.5%, 58.8%, 0%, 42%)
CIE-LAB	lab(28.53, 21.23, -51.48)
CIE-LCH	lch(28.53, 55.69, 292.41°)
OKLab	oklab(39.15% -0.0175 -0.1488)
OKLCH	oklch(39.15% 0.15 263.3)
XYZ	xyz(7.3655, 5.6569, 28.7149)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173D94 #946E17

analogous

#177B94 #173D94 #2F1794

triadic

#173D94 #94173D #3D9417

tetradic

#173D94 #94177B #946E17 #17942F

square

#173D94 #94177B #946E17 #17942F

split-complementary

#173D94 #942F17 #7B9417

monochromatic

#07112A #0F275F #173D94 #1F53C9 #4474E2

Accessibility & contrast

On white

9.85

#173D94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#173D94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173D94

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173D94	#FFFFFF	#000000	##FFFFFF
##173D94	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004997

Deuteranopia (green-blind)

#003E92

Tritanopia (blue-blind)

#005362

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #173d94;
/* rgb */ color: rgb(23, 61, 148);
/* oklch */ color: oklch(39.2% 0.150 263.3);

Tailwind

colors: {
  custom: {
    50: '#6c71b4',
    500: '#173d94',
    950: '#000000',
  },
}

SCSS

$custom: #173d94;
$custom-light: #6c71b4;
$custom-dark: #000000;

JSON

{
  "hex": "#173d94",
  "rgb": {
    "r": 23,
    "g": 61,
    "b": 148
  },
  "hsl": {
    "h": 221.76,
    "s": 73.099,
    "l": 33.529
  },
  "oklch": {
    "l": 0.39152,
    "c": 0.14982,
    "h": 263.3
  },
  "luminance": 0.05658
}

Semantic roles & 50–950 ramp

primary

#173D94

secondary

#C39C44

accent

#B838F0

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #173D94

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

Preview Lab → · Contrast checker → · Palette generator →