#173565#173565

#173565 is a dark, moderate blue. Relative luminance 0.037; OKLCH L 33.5% C 0.092 H 259.4°. Best body text is #FFFFFF at 12.11:1 contrast (WCAG AA passes).

Color values

HEX	#173565
RGB	rgb(23, 53, 101)
HSL	hsl(217, 63%, 24%)
HSV	hsv(217, 77%, 40%)
CMYK	cmyk(77.2%, 47.5%, 0%, 60.4%)
CIE-LAB	lab(22.54, 7.43, -31.55)
CIE-LCH	lch(22.54, 32.41, 283.25°)
OKLab	oklab(33.45% -0.0168 -0.0903)
OKLCH	oklch(33.45% 0.092 259.4)
XYZ	xyz(3.9746, 3.6675, 12.8078)
Luminance	0.0367 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173565 #654717

analogous

#175C65 #173565 #201765

triadic

#173565 #651735 #356517

tetradic

#173565 #65175C #654717 #176520

square

#173565 #65175C #654717 #176520

split-complementary

#173565 #652017 #5C6517

monochromatic

#060D19 #0C1B33 #173565 #224F97 #2E69C9

Accessibility & contrast

On white

12.11

#173565 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#173565 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173565

12.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173565	#FFFFFF	#000000	##FFFFFF
##173565	1.00	12.11	1.73	12.11
#FFFFFF	12.11	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D3A67

Deuteranopia (green-blind)

#0D3364

Tritanopia (blue-blind)

#004048

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #173565;
/* rgb */ color: rgb(23, 53, 101);
/* oklch */ color: oklch(33.5% 0.092 259.4);

Tailwind

colors: {
  custom: {
    50: '#606b91',
    500: '#173565',
    950: '#000000',
  },
}

SCSS

$custom: #173565;
$custom-light: #606b91;
$custom-dark: #000000;

JSON

{
  "hex": "#173565",
  "rgb": {
    "r": 23,
    "g": 53,
    "b": 101
  },
  "hsl": {
    "h": 216.923,
    "s": 62.903,
    "l": 24.314
  },
  "oklch": {
    "l": 0.33452,
    "c": 0.09188,
    "h": 259.4
  },
  "luminance": 0.03668
}

Semantic roles & 50–950 ramp

primary

#173565

secondary

#9B773C

accent

#A742E6

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05060D

muted

#7A7A7D

Preview Lab

Preview with #173565

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

Preview Lab → · Contrast checker → · Palette generator →