#173178#173178

#173178 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.1% C 0.126 H 265.0°. Best body text is #FFFFFF at 12.02:1 contrast (WCAG AA passes).

Color values

HEX	#173178
RGB	rgb(23, 49, 120)
HSL	hsl(224, 68%, 28%)
HSV	hsv(224, 81%, 47%)
CMYK	cmyk(80.8%, 59.2%, 0%, 52.9%)
CIE-LAB	lab(22.77, 18.21, -43.38)
CIE-LCH	lch(22.77, 47.05, 292.77°)
OKLab	oklab(34.09% -0.0109 -0.1252)
OKLCH	oklch(34.09% 0.126 265)
XYZ	xyz(4.8406, 3.7343, 18.2313)
Luminance	0.0374 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173178 #785E17

analogous

#176178 #173178 #2E1778

triadic

#173178 #781731 #317817

tetradic

#173178 #781761 #785E17 #17782E

square

#173178 #781761 #785E17 #17782E

split-complementary

#173178 #782E17 #617817

monochromatic

#050A1A #0D1C45 #173178 #2146AB #325ED8

Accessibility & contrast

On white

12.02

#173178 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#173178 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173178

12.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173178	#FFFFFF	#000000	##FFFFFF
##173178	1.00	12.02	1.75	12.02
#FFFFFF	12.02	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B7A

Deuteranopia (green-blind)

#003277

Tritanopia (blue-blind)

#00434F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #173178;
/* rgb */ color: rgb(23, 49, 120);
/* oklch */ color: oklch(34.1% 0.126 265.0);

Tailwind

colors: {
  custom: {
    50: '#6568a0',
    500: '#173178',
    950: '#000000',
  },
}

SCSS

$custom: #173178;
$custom-light: #6568a0;
$custom-dark: #000000;

JSON

{
  "hex": "#173178",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 120
  },
  "hsl": {
    "h": 223.918,
    "s": 67.832,
    "l": 28.039
  },
  "oklch": {
    "l": 0.34091,
    "c": 0.1257,
    "h": 265
  },
  "luminance": 0.03735
}

Semantic roles & 50–950 ramp

primary

#173178

secondary

#AD8F3E

accent

#BC3DEB

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060F

muted

#7A7A7E

Preview Lab

Preview with #173178

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

Preview Lab → · Contrast checker → · Palette generator →