#173390#173390

#173390 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.7% C 0.157 H 265.7°. Best body text is #FFFFFF at 10.98:1 contrast (WCAG AA passes).

Color values

HEX	#173390
RGB	rgb(23, 51, 144)
HSL	hsl(226, 72%, 33%)
HSV	hsv(226, 84%, 56%)
CMYK	cmyk(84%, 64.6%, 0%, 43.5%)
CIE-LAB	lab(25.45, 26.53, -54.05)
CIE-LCH	lch(25.45, 60.21, 296.14°)
OKLab	oklab(36.75% -0.0116 -0.1565)
OKLCH	oklch(36.75% 0.157 265.7)
XYZ	xyz(6.5694, 4.5626, 26.9146)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173390 #907417

analogous

#176F90 #173390 #381790

triadic

#173390 #901733 #339017

tetradic

#173390 #90176F #907417 #179038

square

#173390 #90176F #907417 #179038

split-complementary

#173390 #903817 #6F9017

monochromatic

#060E26 #0F205B #173390 #1F46C5 #4166E1

Accessibility & contrast

On white

10.98

#173390 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#173390 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173390

10.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173390	#FFFFFF	#000000	##FFFFFF
##173390	1.00	10.98	1.91	10.98
#FFFFFF	10.98	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004293

Deuteranopia (green-blind)

#00378E

Tritanopia (blue-blind)

#004B5C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #173390;
/* rgb */ color: rgb(23, 51, 144);
/* oklch */ color: oklch(36.7% 0.157 265.7);

Tailwind

colors: {
  custom: {
    50: '#6c6ab1',
    500: '#173390',
    950: '#000000',
  },
}

SCSS

$custom: #173390;
$custom-light: #6c6ab1;
$custom-dark: #000000;

JSON

{
  "hex": "#173390",
  "rgb": {
    "r": 23,
    "g": 51,
    "b": 144
  },
  "hsl": {
    "h": 226.116,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.36746,
    "c": 0.15692,
    "h": 265.7
  },
  "luminance": 0.04563
}

Semantic roles & 50–950 ramp

primary

#173390

secondary

#C1A442

accent

#C539EF

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #173390

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

Preview Lab → · Contrast checker → · Palette generator →