#173996#173996

#173996 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.5% C 0.158 H 264.6°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#173996
RGB	rgb(23, 57, 150)
HSL	hsl(224, 73%, 34%)
HSV	hsv(224, 85%, 59%)
CMYK	cmyk(84.7%, 62%, 0%, 41.2%)
CIE-LAB	lab(27.60, 24.80, -54.23)
CIE-LCH	lch(27.60, 59.63, 294.58°)
OKLab	oklab(38.51% -0.015 -0.1569)
OKLCH	oklch(38.51% 0.158 264.6)
XYZ	xyz(7.3195, 5.3095, 29.4873)
Luminance	0.0531 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173996 #967417

analogous

#177996 #173996 #351796

triadic

#173996 #961739 #399617

tetradic

#173996 #961779 #967417 #179635

square

#173996 #961779 #967417 #179635

split-complementary

#173996 #963517 #799617

monochromatic

#07112C #0F2561 #173996 #1F4DCB #456FE2

Accessibility & contrast

On white

10.18

#173996 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#173996 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173996

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173996	#FFFFFF	#000000	##FFFFFF
##173996	1.00	10.18	2.06	10.18
#FFFFFF	10.18	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004799

Deuteranopia (green-blind)

#003B94

Tritanopia (blue-blind)

#005162

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #173996;
/* rgb */ color: rgb(23, 57, 150);
/* oklch */ color: oklch(38.5% 0.158 264.6);

Tailwind

colors: {
  custom: {
    50: '#6d6eb6',
    500: '#173996',
    950: '#000000',
  },
}

SCSS

$custom: #173996;
$custom-light: #6d6eb6;
$custom-dark: #000000;

JSON

{
  "hex": "#173996",
  "rgb": {
    "r": 23,
    "g": 57,
    "b": 150
  },
  "hsl": {
    "h": 223.937,
    "s": 73.41,
    "l": 33.922
  },
  "oklch": {
    "l": 0.38508,
    "c": 0.15763,
    "h": 264.6
  },
  "luminance": 0.0531
}

Semantic roles & 50–950 ramp

primary

#173996

secondary

#C3A245

accent

#BF38F0

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #173996

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

Preview Lab → · Contrast checker → · Palette generator →