#173678#173678

#173678 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.2% C 0.119 H 262.9°. Best body text is #FFFFFF at 11.44:1 contrast (WCAG AA passes).

Color values

HEX	#173678
RGB	rgb(23, 54, 120)
HSL	hsl(221, 68%, 28%)
HSV	hsv(221, 81%, 47%)
CMYK	cmyk(80.8%, 55%, 0%, 52.9%)
CIE-LAB	lab(24.25, 14.64, -40.99)
CIE-LCH	lch(24.25, 43.53, 289.66°)
OKLab	oklab(35.2% -0.0148 -0.1181)
OKLCH	oklch(35.2% 0.119 262.9)
XYZ	xyz(5.0615, 4.1760, 18.3049)
Luminance	0.0418 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173678 #785917

analogous

#176678 #173678 #291778

triadic

#173678 #781736 #367817

tetradic

#173678 #781766 #785917 #177829

square

#173678 #781766 #785917 #177829

split-complementary

#173678 #782917 #667817

monochromatic

#050C1A #0D1F45 #173678 #214DAB #3267D8

Accessibility & contrast

On white

11.44

#173678 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#173678 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173678

11.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173678	#FFFFFF	#000000	##FFFFFF
##173678	1.00	11.44	1.84	11.44
#FFFFFF	11.44	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#053E7A

Deuteranopia (green-blind)

#003577

Tritanopia (blue-blind)

#004651

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #173678;
/* rgb */ color: rgb(23, 54, 120);
/* oklch */ color: oklch(35.2% 0.119 262.9);

Tailwind

colors: {
  custom: {
    50: '#656c9f',
    500: '#173678',
    950: '#000000',
  },
}

SCSS

$custom: #173678;
$custom-light: #656c9f;
$custom-dark: #000000;

JSON

{
  "hex": "#173678",
  "rgb": {
    "r": 23,
    "g": 54,
    "b": 120
  },
  "hsl": {
    "h": 220.825,
    "s": 67.832,
    "l": 28.039
  },
  "oklch": {
    "l": 0.35203,
    "c": 0.11903,
    "h": 262.9
  },
  "luminance": 0.04177
}

Semantic roles & 50–950 ramp

primary

#173678

secondary

#AD8A3E

accent

#B33DEB

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060F

muted

#7A7A7E

Preview Lab

Preview with #173678

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

Preview Lab → · Contrast checker → · Palette generator →