#173E94#173E94

#173E94 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.4% C 0.149 H 263.0°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#173E94
RGB	rgb(23, 62, 148)
HSL	hsl(221, 73%, 34%)
HSV	hsv(221, 84%, 58%)
CMYK	cmyk(84.5%, 58.1%, 0%, 42%)
CIE-LAB	lab(28.81, 20.54, -51.02)
CIE-LCH	lch(28.81, 55.00, 291.93°)
OKLab	oklab(39.36% -0.0181 -0.1474)
OKLCH	oklch(39.36% 0.149 263)
XYZ	xyz(7.4194, 5.7646, 28.7329)
Luminance	0.0577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173E94 #946D17

analogous

#177C94 #173E94 #2E1794

triadic

#173E94 #94173E #3E9417

tetradic

#173E94 #94177C #946D17 #17942E

square

#173E94 #94177C #946D17 #17942E

split-complementary

#173E94 #942E17 #7C9417

monochromatic

#07122A #0F285F #173E94 #1F54C9 #4475E2

Accessibility & contrast

On white

9.75

#173E94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#173E94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173E94

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173E94	#FFFFFF	#000000	##FFFFFF
##173E94	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A97

Deuteranopia (green-blind)

#003E92

Tritanopia (blue-blind)

#005462

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #173e94;
/* rgb */ color: rgb(23, 62, 148);
/* oklch */ color: oklch(39.4% 0.149 263.0);

Tailwind

colors: {
  custom: {
    50: '#6c72b4',
    500: '#173e94',
    950: '#000000',
  },
}

SCSS

$custom: #173e94;
$custom-light: #6c72b4;
$custom-dark: #000000;

JSON

{
  "hex": "#173e94",
  "rgb": {
    "r": 23,
    "g": 62,
    "b": 148
  },
  "hsl": {
    "h": 221.28,
    "s": 73.099,
    "l": 33.529
  },
  "oklch": {
    "l": 0.39363,
    "c": 0.14855,
    "h": 263
  },
  "luminance": 0.05766
}

Semantic roles & 50–950 ramp

primary

#173E94

secondary

#C39B44

accent

#B638F0

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #173E94

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

Preview Lab → · Contrast checker → · Palette generator →