#173166#173166

#173166 is a dark, moderate blue. Relative luminance 0.033; OKLCH L 32.6% C 0.099 H 262.6°. Best body text is #FFFFFF at 12.59:1 contrast (WCAG AA passes).

Color values

HEX	#173166
RGB	rgb(23, 49, 102)
HSL	hsl(220, 63%, 25%)
HSV	hsv(220, 77%, 40%)
CMYK	cmyk(77.5%, 52%, 0%, 60%)
CIE-LAB	lab(21.35, 10.72, -34.11)
CIE-LCH	lch(21.35, 35.76, 287.44°)
OKLab	oklab(32.56% -0.0127 -0.098)
OKLCH	oklch(32.56% 0.099 262.6)
XYZ	xyz(3.8491, 3.3377, 13.0092)
Luminance	0.0334 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173166 #664C17

analogous

#175966 #173166 #251766

triadic

#173166 #661731 #316617

tetradic

#173166 #661759 #664C17 #176625

square

#173166 #661759 #664C17 #176625

split-complementary

#173166 #662517 #596617

monochromatic

#060C19 #0C1934 #173166 #224998 #2E61CA

Accessibility & contrast

On white

12.59

#173166 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#173166 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173166

12.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173166	#FFFFFF	#000000	##FFFFFF
##173166	1.00	12.59	1.67	12.59
#FFFFFF	12.59	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#133768

Deuteranopia (green-blind)

#003065

Tritanopia (blue-blind)

#003E46

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #173166;
/* rgb */ color: rgb(23, 49, 102);
/* oklch */ color: oklch(32.6% 0.099 262.6);

Tailwind

colors: {
  custom: {
    50: '#606892',
    500: '#173166',
    950: '#000000',
  },
}

SCSS

$custom: #173166;
$custom-light: #606892;
$custom-dark: #000000;

JSON

{
  "hex": "#173166",
  "rgb": {
    "r": 23,
    "g": 49,
    "b": 102
  },
  "hsl": {
    "h": 220.253,
    "s": 63.2,
    "l": 24.51
  },
  "oklch": {
    "l": 0.3256,
    "c": 0.09878,
    "h": 262.6
  },
  "luminance": 0.03338
}

Semantic roles & 50–950 ramp

primary

#173166

secondary

#9C7D3C

accent

#B042E6

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#05060D

muted

#7A7A7E

Preview Lab

Preview with #173166

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

Preview Lab → · Contrast checker → · Palette generator →