#173273#173273

#173273 is a dark, moderate blue. Relative luminance 0.037; OKLCH L 33.9% C 0.117 H 264.1°. Best body text is #FFFFFF at 12.07:1 contrast (WCAG AA passes).

Color values

HEX	#173273
RGB	rgb(23, 50, 115)
HSL	hsl(222, 67%, 27%)
HSV	hsv(222, 80%, 45%)
CMYK	cmyk(80%, 56.5%, 0%, 54.9%)
CIE-LAB	lab(22.66, 15.43, -40.39)
CIE-LCH	lch(22.66, 43.23, 290.90°)
OKLab	oklab(33.87% -0.012 -0.1164)
OKLCH	oklch(33.87% 0.117 264.1)
XYZ	xyz(4.5874, 3.7006, 16.6889)
Luminance	0.0370 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173273 #735817

analogous

#176073 #173273 #2A1773

triadic

#173273 #731732 #327317

tetradic

#173273 #731760 #735817 #17732A

square

#173273 #731760 #735817 #17732A

split-complementary

#173273 #732A17 #607317

monochromatic

#050B1A #0D1C40 #173273 #2148A6 #2F60D5

Accessibility & contrast

On white

12.07

#173273 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#173273 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173273

12.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173273	#FFFFFF	#000000	##FFFFFF
##173273	1.00	12.07	1.74	12.07
#FFFFFF	12.07	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B75

Deuteranopia (green-blind)

#003272

Tritanopia (blue-blind)

#00424D

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #173273;
/* rgb */ color: rgb(23, 50, 115);
/* oklch */ color: oklch(33.9% 0.117 264.1);

Tailwind

colors: {
  custom: {
    50: '#64699c',
    500: '#173273',
    950: '#000000',
  },
}

SCSS

$custom: #173273;
$custom-light: #64699c;
$custom-dark: #000000;

JSON

{
  "hex": "#173273",
  "rgb": {
    "r": 23,
    "g": 50,
    "b": 115
  },
  "hsl": {
    "h": 222.391,
    "s": 66.667,
    "l": 27.059
  },
  "oklch": {
    "l": 0.33873,
    "c": 0.11702,
    "h": 264.1
  },
  "luminance": 0.03701
}

Semantic roles & 50–950 ramp

primary

#173273

secondary

#A9893D

accent

#B73EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #173273

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

Preview Lab → · Contrast checker → · Palette generator →