#173669#173669

#173669 is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.0% C 0.097 H 259.9°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#173669
RGB	rgb(23, 54, 105)
HSL	hsl(217, 64%, 25%)
HSV	hsv(217, 78%, 41%)
CMYK	cmyk(78.1%, 48.6%, 0%, 58.8%)
CIE-LAB	lab(23.13, 8.38, -33.18)
CIE-LCH	lch(23.13, 34.23, 284.18°)
OKLab	oklab(34% -0.017 -0.0951)
OKLCH	oklch(34% 0.097 259.9)
XYZ	xyz(4.2214, 3.8399, 13.8806)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173669 #694A17

analogous

#175F69 #173669 #211769

triadic

#173669 #691736 #366917

tetradic

#173669 #69175F #694A17 #176921

square

#173669 #69175F #694A17 #176921

split-complementary

#173669 #692117 #5F6917

monochromatic

#050D19 #0C1C37 #173669 #22509B #2D6ACD

Accessibility & contrast

On white

11.88

#173669 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#173669 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173669

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173669	#FFFFFF	#000000	##FFFFFF
##173669	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B3B6B

Deuteranopia (green-blind)

#093468

Tritanopia (blue-blind)

#00424A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #173669;
/* rgb */ color: rgb(23, 54, 105);
/* oklch */ color: oklch(34.0% 0.097 259.9);

Tailwind

colors: {
  custom: {
    50: '#616c94',
    500: '#173669',
    950: '#000000',
  },
}

SCSS

$custom: #173669;
$custom-light: #616c94;
$custom-dark: #000000;

JSON

{
  "hex": "#173669",
  "rgb": {
    "r": 23,
    "g": 54,
    "b": 105
  },
  "hsl": {
    "h": 217.317,
    "s": 64.063,
    "l": 25.098
  },
  "oklch": {
    "l": 0.34,
    "c": 0.09664,
    "h": 259.9
  },
  "luminance": 0.0384
}

Semantic roles & 50–950 ramp

primary

#173669

secondary

#9F7A3D

accent

#A841E7

background

#F6F6F9

surface

#EBEBF1

border

#C6C6CB

text

#05060D

muted

#7A7A7E

Preview Lab

Preview with #173669

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

Preview Lab → · Contrast checker → · Palette generator →