#173479#173479

#173479 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 34.8% C 0.123 H 263.9°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#173479
RGB	rgb(23, 52, 121)
HSL	hsl(222, 68%, 28%)
HSV	hsv(222, 81%, 47%)
CMYK	cmyk(81%, 57%, 0%, 52.5%)
CIE-LAB	lab(23.73, 16.48, -42.46)
CIE-LCH	lch(23.73, 45.55, 291.22°)
OKLab	oklab(34.84% -0.0131 -0.1225)
OKLCH	oklch(34.84% 0.123 263.9)
XYZ	xyz(5.0313, 4.0180, 18.5958)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173479 #795C17

analogous

#176579 #173479 #2B1779

triadic

#173479 #791734 #347917

tetradic

#173479 #791765 #795C17 #17792B

square

#173479 #791765 #795C17 #17792B

split-complementary

#173479 #792B17 #657917

monochromatic

#050B1A #0D1E46 #173479 #214AAC #3263D8

Accessibility & contrast

On white

11.64

#173479 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#173479 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173479

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173479	#FFFFFF	#000000	##FFFFFF
##173479	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7B

Deuteranopia (green-blind)

#003478

Tritanopia (blue-blind)

#004551

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #173479;
/* rgb */ color: rgb(23, 52, 121);
/* oklch */ color: oklch(34.8% 0.123 263.9);

Tailwind

colors: {
  custom: {
    50: '#656aa0',
    500: '#173479',
    950: '#000000',
  },
}

SCSS

$custom: #173479;
$custom-light: #656aa0;
$custom-dark: #000000;

JSON

{
  "hex": "#173479",
  "rgb": {
    "r": 23,
    "g": 52,
    "b": 121
  },
  "hsl": {
    "h": 222.245,
    "s": 68.056,
    "l": 28.235
  },
  "oklch": {
    "l": 0.34839,
    "c": 0.12317,
    "h": 263.9
  },
  "luminance": 0.04019
}

Semantic roles & 50–950 ramp

primary

#173479

secondary

#AE8D3E

accent

#B73DEB

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060F

muted

#7A7A7E

Preview Lab

Preview with #173479

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

Preview Lab → · Contrast checker → · Palette generator →