#173475#173475

#173475 is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.5% C 0.117 H 263.4°. Best body text is #FFFFFF at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#173475
RGB	rgb(23, 52, 117)
HSL	hsl(221, 67%, 27%)
HSV	hsv(221, 80%, 46%)
CMYK	cmyk(80.3%, 55.6%, 0%, 54.1%)
CIE-LAB	lab(23.41, 14.82, -40.44)
CIE-LCH	lch(23.41, 43.07, 290.13°)
OKLab	oklab(34.5% -0.0135 -0.1165)
OKLCH	oklch(34.5% 0.117 263.4)
XYZ	xyz(4.7911, 3.9219, 17.3307)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173475 #755817

analogous

#176375 #173475 #291775

triadic

#173475 #751734 #347517

tetradic

#173475 #751763 #755817 #177529

square

#173475 #751763 #755817 #177529

split-complementary

#173475 #752917 #637517

monochromatic

#050B1A #0D1D42 #173475 #214BA8 #3063D6

Accessibility & contrast

On white

11.77

#173475 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#173475 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173475

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173475	#FFFFFF	#000000	##FFFFFF
##173475	1.00	11.77	1.78	11.77
#FFFFFF	11.77	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#033C77

Deuteranopia (green-blind)

#003474

Tritanopia (blue-blind)

#00444F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #173475;
/* rgb */ color: rgb(23, 52, 117);
/* oklch */ color: oklch(34.5% 0.117 263.4);

Tailwind

colors: {
  custom: {
    50: '#646a9d',
    500: '#173475',
    950: '#000000',
  },
}

SCSS

$custom: #173475;
$custom-light: #646a9d;
$custom-dark: #000000;

JSON

{
  "hex": "#173475",
  "rgb": {
    "r": 23,
    "g": 52,
    "b": 117
  },
  "hsl": {
    "h": 221.489,
    "s": 67.143,
    "l": 27.451
  },
  "oklch": {
    "l": 0.34496,
    "c": 0.11729,
    "h": 263.4
  },
  "luminance": 0.03922
}

Semantic roles & 50–950 ramp

primary

#173475

secondary

#AA893D

accent

#B53EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #173475

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

Preview Lab → · Contrast checker → · Palette generator →