#173374#173374

#173374 is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.2% C 0.117 H 263.8°. Best body text is #FFFFFF at 11.92:1 contrast (WCAG AA passes).

Color values

HEX	#173374
RGB	rgb(23, 51, 116)
HSL	hsl(222, 67%, 27%)
HSV	hsv(222, 80%, 45%)
CMYK	cmyk(80.2%, 56%, 0%, 54.5%)
CIE-LAB	lab(23.03, 15.12, -40.41)
CIE-LCH	lch(23.03, 43.15, 290.52°)
OKLab	oklab(34.19% -0.0127 -0.1165)
OKLCH	oklch(34.19% 0.117 263.8)
XYZ	xyz(4.6884, 3.8102, 17.0080)
Luminance	0.0381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173374 #745817

analogous

#176274 #173374 #291774

triadic

#173374 #741733 #337417

tetradic

#173374 #741762 #745817 #177429

square

#173374 #741762 #745817 #177429

split-complementary

#173374 #742917 #627417

monochromatic

#050B1A #0D1D41 #173374 #2149A7 #3062D6

Accessibility & contrast

On white

11.92

#173374 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#173374 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173374

11.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173374	#FFFFFF	#000000	##FFFFFF
##173374	1.00	11.92	1.76	11.92
#FFFFFF	11.92	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#013B76

Deuteranopia (green-blind)

#003373

Tritanopia (blue-blind)

#00434E

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #173374;
/* rgb */ color: rgb(23, 51, 116);
/* oklch */ color: oklch(34.2% 0.117 263.8);

Tailwind

colors: {
  custom: {
    50: '#646a9d',
    500: '#173374',
    950: '#000000',
  },
}

SCSS

$custom: #173374;
$custom-light: #646a9d;
$custom-dark: #000000;

JSON

{
  "hex": "#173374",
  "rgb": {
    "r": 23,
    "g": 51,
    "b": 116
  },
  "hsl": {
    "h": 221.935,
    "s": 66.906,
    "l": 27.255
  },
  "oklch": {
    "l": 0.34185,
    "c": 0.11716,
    "h": 263.8
  },
  "luminance": 0.03811
}

Semantic roles & 50–950 ramp

primary

#173374

secondary

#A9893D

accent

#B63EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #173374

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

Preview Lab → · Contrast checker → · Palette generator →