#173665#173665

#173665 is a dark, moderate blue. Relative luminance 0.038; OKLCH L 33.7% C 0.091 H 258.6°. Best body text is #FFFFFF at 11.99:1 contrast (WCAG AA passes).

Color values

HEX	#173665
RGB	rgb(23, 54, 101)
HSL	hsl(216, 63%, 24%)
HSV	hsv(216, 77%, 40%)
CMYK	cmyk(77.2%, 46.5%, 0%, 60.4%)
CIE-LAB	lab(22.86, 6.71, -31.03)
CIE-LCH	lch(22.86, 31.75, 282.21°)
OKLab	oklab(33.7% -0.0178 -0.0888)
OKLCH	oklch(33.7% 0.091 258.6)
XYZ	xyz(4.0206, 3.7596, 12.8232)
Luminance	0.0376 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173665 #654617

analogous

#175D65 #173665 #1F1765

triadic

#173665 #651736 #366517

tetradic

#173665 #65175D #654617 #17651F

square

#173665 #65175D #654617 #17651F

split-complementary

#173665 #651F17 #5D6517

monochromatic

#060D19 #0C1B33 #173665 #225197 #2E6BC9

Accessibility & contrast

On white

11.99

#173665 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#173665 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173665

11.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173665	#FFFFFF	#000000	##FFFFFF
##173665	1.00	11.99	1.75	11.99
#FFFFFF	11.99	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F3A67

Deuteranopia (green-blind)

#103364

Tritanopia (blue-blind)

#004148

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #173665;
/* rgb */ color: rgb(23, 54, 101);
/* oklch */ color: oklch(33.7% 0.091 258.6);

Tailwind

colors: {
  custom: {
    50: '#606c91',
    500: '#173665',
    950: '#000000',
  },
}

SCSS

$custom: #173665;
$custom-light: #606c91;
$custom-dark: #000000;

JSON

{
  "hex": "#173665",
  "rgb": {
    "r": 23,
    "g": 54,
    "b": 101
  },
  "hsl": {
    "h": 216.154,
    "s": 62.903,
    "l": 24.314
  },
  "oklch": {
    "l": 0.337,
    "c": 0.09057,
    "h": 258.6
  },
  "luminance": 0.0376
}

Semantic roles & 50–950 ramp

primary

#173665

secondary

#9B763C

accent

#A542E6

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05060D

muted

#7A7A7D

Preview Lab

Preview with #173665

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

Preview Lab → · Contrast checker → · Palette generator →