#173474#173474

#173474 is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.4% C 0.116 H 263.3°. Best body text is #FFFFFF at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#173474
RGB	rgb(23, 52, 116)
HSL	hsl(221, 67%, 27%)
HSV	hsv(221, 80%, 45%)
CMYK	cmyk(80.2%, 55.2%, 0%, 54.5%)
CIE-LAB	lab(23.33, 14.41, -39.93)
CIE-LCH	lch(23.33, 42.45, 289.84°)
OKLab	oklab(34.41% -0.0136 -0.115)
OKLCH	oklch(34.41% 0.116 263.3)
XYZ	xyz(4.7326, 3.8986, 17.0227)
Luminance	0.0390 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173474 #745717

analogous

#176374 #173474 #281774

triadic

#173474 #741734 #347417

tetradic

#173474 #741763 #745717 #177428

square

#173474 #741763 #745717 #177428

split-complementary

#173474 #742817 #637417

monochromatic

#050B1A #0D1D41 #173474 #214BA7 #3063D6

Accessibility & contrast

On white

11.80

#173474 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#173474 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173474

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173474	#FFFFFF	#000000	##FFFFFF
##173474	1.00	11.80	1.78	11.80
#FFFFFF	11.80	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#063C76

Deuteranopia (green-blind)

#003473

Tritanopia (blue-blind)

#00444E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #173474;
/* rgb */ color: rgb(23, 52, 116);
/* oklch */ color: oklch(34.4% 0.116 263.3);

Tailwind

colors: {
  custom: {
    50: '#646a9d',
    500: '#173474',
    950: '#000000',
  },
}

SCSS

$custom: #173474;
$custom-light: #646a9d;
$custom-dark: #000000;

JSON

{
  "hex": "#173474",
  "rgb": {
    "r": 23,
    "g": 52,
    "b": 116
  },
  "hsl": {
    "h": 221.29,
    "s": 66.906,
    "l": 27.255
  },
  "oklch": {
    "l": 0.34412,
    "c": 0.11581,
    "h": 263.3
  },
  "luminance": 0.03899
}

Semantic roles & 50–950 ramp

primary

#173474

secondary

#A9883D

accent

#B43EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #173474

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

Preview Lab → · Contrast checker → · Palette generator →