#173677#173677

#173677 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.1% C 0.118 H 262.7°. Best body text is #FFFFFF at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#173677
RGB	rgb(23, 54, 119)
HSL	hsl(221, 68%, 28%)
HSV	hsv(221, 81%, 47%)
CMYK	cmyk(80.7%, 54.6%, 0%, 53.3%)
CIE-LAB	lab(24.17, 14.23, -40.49)
CIE-LCH	lch(24.17, 42.91, 289.36°)
OKLab	oklab(35.12% -0.0149 -0.1166)
OKLCH	oklch(35.12% 0.118 262.7)
XYZ	xyz(5.0011, 4.1518, 17.9870)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173677 #775817

analogous

#176677 #173677 #281777

triadic

#173677 #771736 #367717

tetradic

#173677 #771766 #775817 #177728

square

#173677 #771766 #775817 #177728

split-complementary

#173677 #772817 #667717

monochromatic

#050C1A #0D1F44 #173677 #214DAA #3167D7

Accessibility & contrast

On white

11.47

#173677 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#173677 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173677

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173677	#FFFFFF	#000000	##FFFFFF
##173677	1.00	11.47	1.83	11.47
#FFFFFF	11.47	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#083E79

Deuteranopia (green-blind)

#003576

Tritanopia (blue-blind)

#004651

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #173677;
/* rgb */ color: rgb(23, 54, 119);
/* oklch */ color: oklch(35.1% 0.118 262.7);

Tailwind

colors: {
  custom: {
    50: '#646c9f',
    500: '#173677',
    950: '#000000',
  },
}

SCSS

$custom: #173677;
$custom-light: #646c9f;
$custom-dark: #000000;

JSON

{
  "hex": "#173677",
  "rgb": {
    "r": 23,
    "g": 54,
    "b": 119
  },
  "hsl": {
    "h": 220.625,
    "s": 67.606,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35119,
    "c": 0.11757,
    "h": 262.7
  },
  "luminance": 0.04152
}

Semantic roles & 50–950 ramp

primary

#173677

secondary

#AC883E

accent

#B33DEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #173677

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

Preview Lab → · Contrast checker → · Palette generator →