#173173#173173

#173173 is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.6% C 0.118 H 264.6°. Best body text is #FFFFFF at 12.19:1 contrast (WCAG AA passes).

Color values

HEX	#173173
RGB	rgb(23, 49, 115)
HSL	hsl(223, 67%, 27%)
HSV	hsv(223, 80%, 45%)
CMYK	cmyk(80%, 57.4%, 0%, 54.9%)
CIE-LAB	lab(22.36, 16.14, -40.87)
CIE-LCH	lch(22.36, 43.94, 291.55°)
OKLab	oklab(33.65% -0.0112 -0.1178)
OKLCH	oklch(33.65% 0.118 264.6)
XYZ	xyz(4.5451, 3.6161, 16.6748)
Luminance	0.0362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173173 #735917

analogous

#175F73 #173173 #2B1773

triadic

#173173 #731731 #317317

tetradic

#173173 #73175F #735917 #17732B

square

#173173 #73175F #735917 #17732B

split-complementary

#173173 #732B17 #5F7317

monochromatic

#050B1A #0D1B40 #173173 #2147A6 #2F5ED5

Accessibility & contrast

On white

12.19

#173173 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#173173 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173173

12.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173173	#FFFFFF	#000000	##FFFFFF
##173173	1.00	12.19	1.72	12.19
#FFFFFF	12.19	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A75

Deuteranopia (green-blind)

#003172

Tritanopia (blue-blind)

#00414D

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #173173;
/* rgb */ color: rgb(23, 49, 115);
/* oklch */ color: oklch(33.6% 0.118 264.6);

Tailwind

colors: {
  custom: {
    50: '#64689c',
    500: '#173173',
    950: '#000000',
  },
}

SCSS

$custom: #173173;
$custom-light: #64689c;
$custom-dark: #000000;

JSON

{
  "hex": "#173173",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 115
  },
  "hsl": {
    "h": 223.043,
    "s": 66.667,
    "l": 27.059
  },
  "oklch": {
    "l": 0.33649,
    "c": 0.11836,
    "h": 264.6
  },
  "luminance": 0.03617
}

Semantic roles & 50–950 ramp

primary

#173173

secondary

#A98A3D

accent

#B93EEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #173173

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

Preview Lab → · Contrast checker → · Palette generator →