#173675#173675

#173675 is a dark, moderate blue. Relative luminance 0.041; OKLCH L 35.0% C 0.115 H 262.4°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#173675
RGB	rgb(23, 54, 117)
HSL	hsl(220, 67%, 27%)
HSV	hsv(220, 80%, 46%)
CMYK	cmyk(80.3%, 53.8%, 0%, 54.1%)
CIE-LAB	lab(24.01, 13.39, -39.46)
CIE-LCH	lch(24.01, 41.67, 288.75°)
OKLab	oklab(34.95% -0.0151 -0.1136)
OKLCH	oklch(34.95% 0.115 262.4)
XYZ	xyz(4.8823, 4.1043, 17.3611)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173675 #755617

analogous

#176575 #173675 #271775

triadic

#173675 #751736 #367517

tetradic

#173675 #751765 #755617 #177527

square

#173675 #751765 #755617 #177527

split-complementary

#173675 #752717 #657517

monochromatic

#050C1A #0D1E42 #173675 #214EA8 #3067D6

Accessibility & contrast

On white

11.53

#173675 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#173675 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173675

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173675	#FFFFFF	#000000	##FFFFFF
##173675	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C3E77

Deuteranopia (green-blind)

#003574

Tritanopia (blue-blind)

#004550

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #173675;
/* rgb */ color: rgb(23, 54, 117);
/* oklch */ color: oklch(35.0% 0.115 262.4);

Tailwind

colors: {
  custom: {
    50: '#646c9d',
    500: '#173675',
    950: '#000000',
  },
}

SCSS

$custom: #173675;
$custom-light: #646c9d;
$custom-dark: #000000;

JSON

{
  "hex": "#173675",
  "rgb": {
    "r": 23,
    "g": 54,
    "b": 117
  },
  "hsl": {
    "h": 220.213,
    "s": 67.143,
    "l": 27.451
  },
  "oklch": {
    "l": 0.34953,
    "c": 0.11461,
    "h": 262.4
  },
  "luminance": 0.04105
}

Semantic roles & 50–950 ramp

primary

#173675

secondary

#AA863D

accent

#B13EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #173675

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

Preview Lab → · Contrast checker → · Palette generator →