#173271#173271

#173271 is a dark, moderate blue. Relative luminance 0.037; OKLCH L 33.7% C 0.114 H 263.8°. Best body text is #FFFFFF at 12.13:1 contrast (WCAG AA passes).

Color values

HEX	#173271
RGB	rgb(23, 50, 113)
HSL	hsl(222, 66%, 27%)
HSV	hsv(222, 80%, 44%)
CMYK	cmyk(79.6%, 55.8%, 0%, 55.7%)
CIE-LAB	lab(22.50, 14.59, -39.36)
CIE-LCH	lch(22.50, 41.98, 290.34°)
OKLab	oklab(33.7% -0.0122 -0.1134)
OKLCH	oklch(33.7% 0.114 263.8)
XYZ	xyz(4.4735, 3.6551, 16.0893)
Luminance	0.0366 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173271 #715617

analogous

#175F71 #173271 #291771

triadic

#173271 #711732 #327117

tetradic

#173271 #71175F #715617 #177129

square

#173271 #71175F #715617 #177129

split-complementary

#173271 #712917 #5F7117

monochromatic

#050B19 #0D1C3E #173271 #2149A4 #2E60D4

Accessibility & contrast

On white

12.13

#173271 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#173271 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173271

12.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173271	#FFFFFF	#000000	##FFFFFF
##173271	1.00	12.13	1.73	12.13
#FFFFFF	12.13	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#033A73

Deuteranopia (green-blind)

#003270

Tritanopia (blue-blind)

#00414C

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #173271;
/* rgb */ color: rgb(23, 50, 113);
/* oklch */ color: oklch(33.7% 0.114 263.8);

Tailwind

colors: {
  custom: {
    50: '#63699a',
    500: '#173271',
    950: '#000000',
  },
}

SCSS

$custom: #173271;
$custom-light: #63699a;
$custom-dark: #000000;

JSON

{
  "hex": "#173271",
  "rgb": {
    "r": 23,
    "g": 50,
    "b": 113
  },
  "hsl": {
    "h": 222,
    "s": 66.176,
    "l": 26.667
  },
  "oklch": {
    "l": 0.33702,
    "c": 0.11405,
    "h": 263.8
  },
  "luminance": 0.03656
}

Semantic roles & 50–950 ramp

primary

#173271

secondary

#A7873D

accent

#B63FE9

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #173271

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

Preview Lab → · Contrast checker → · Palette generator →