#173890#173890

#173890 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.8% C 0.151 H 264.5°. Best body text is #FFFFFF at 10.47:1 contrast (WCAG AA passes).

Color values

HEX	#173890
RGB	rgb(23, 56, 144)
HSL	hsl(224, 72%, 33%)
HSV	hsv(224, 84%, 56%)
CMYK	cmyk(84%, 61.1%, 0%, 43.5%)
CIE-LAB	lab(26.80, 23.08, -51.84)
CIE-LCH	lch(26.80, 56.75, 294.00°)
OKLab	oklab(37.75% -0.0145 -0.1499)
OKLCH	oklch(37.75% 0.151 264.5)
XYZ	xyz(6.7998, 5.0233, 26.9914)
Luminance	0.0502 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173890 #906F17

analogous

#177590 #173890 #321790

triadic

#173890 #901738 #389017

tetradic

#173890 #901775 #906F17 #179032

square

#173890 #901775 #906F17 #179032

split-complementary

#173890 #903217 #759017

monochromatic

#060F26 #0F235B #173890 #1F4DC5 #416CE1

Accessibility & contrast

On white

10.47

#173890 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#173890 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173890

10.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173890	#FFFFFF	#000000	##FFFFFF
##173890	1.00	10.47	2.00	10.47
#FFFFFF	10.47	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004593

Deuteranopia (green-blind)

#003A8E

Tritanopia (blue-blind)

#004F5E

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #173890;
/* rgb */ color: rgb(23, 56, 144);
/* oklch */ color: oklch(37.8% 0.151 264.5);

Tailwind

colors: {
  custom: {
    50: '#6b6eb1',
    500: '#173890',
    950: '#000000',
  },
}

SCSS

$custom: #173890;
$custom-light: #6b6eb1;
$custom-dark: #000000;

JSON

{
  "hex": "#173890",
  "rgb": {
    "r": 23,
    "g": 56,
    "b": 144
  },
  "hsl": {
    "h": 223.636,
    "s": 72.455,
    "l": 32.745
  },
  "oklch": {
    "l": 0.3775,
    "c": 0.15064,
    "h": 264.5
  },
  "luminance": 0.05024
}

Semantic roles & 50–950 ramp

primary

#173890

secondary

#C19E42

accent

#BD39EF

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #173890

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

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