#173384#173384

#173384 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.6% C 0.140 H 265.2°. Best body text is #FFFFFF at 11.39:1 contrast (WCAG AA passes).

Color values

HEX	#173384
RGB	rgb(23, 51, 132)
HSL	hsl(225, 70%, 30%)
HSV	hsv(225, 83%, 52%)
CMYK	cmyk(82.6%, 61.4%, 0%, 48.2%)
CIE-LAB	lab(24.37, 21.71, -48.35)
CIE-LCH	lch(24.37, 53.00, 294.18°)
OKLab	oklab(35.61% -0.0117 -0.1398)
OKLCH	oklch(35.61% 0.14 265.2)
XYZ	xyz(5.7006, 4.2151, 22.3385)
Luminance	0.0422 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173384 #846817

analogous

#176984 #173384 #311784

triadic

#173384 #841733 #338417

tetradic

#173384 #841769 #846817 #178431

square

#173384 #841769 #846817 #178431

split-complementary

#173384 #843117 #698417

monochromatic

#050B1C #0E1F50 #173384 #2047B8 #3963DC

Accessibility & contrast

On white

11.39

#173384 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#173384 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173384

11.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173384	#FFFFFF	#000000	##FFFFFF
##173384	1.00	11.39	1.84	11.39
#FFFFFF	11.39	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F87

Deuteranopia (green-blind)

#003582

Tritanopia (blue-blind)

#004856

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #173384;
/* rgb */ color: rgb(23, 51, 132);
/* oklch */ color: oklch(35.6% 0.140 265.2);

Tailwind

colors: {
  custom: {
    50: '#686aa9',
    500: '#173384',
    950: '#000000',
  },
}

SCSS

$custom: #173384;
$custom-light: #686aa9;
$custom-dark: #000000;

JSON

{
  "hex": "#173384",
  "rgb": {
    "r": 23,
    "g": 51,
    "b": 132
  },
  "hsl": {
    "h": 224.587,
    "s": 70.323,
    "l": 30.392
  },
  "oklch": {
    "l": 0.35609,
    "c": 0.14028,
    "h": 265.2
  },
  "luminance": 0.04216
}

Semantic roles & 50–950 ramp

primary

#173384

secondary

#B8993F

accent

#BF3BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #173384

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

Preview Lab → · Contrast checker → · Palette generator →