#173485#173485

#173485 is a dark, vivid blue. Relative luminance 0.043; OKLCH L 35.9% C 0.140 H 264.9°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#173485
RGB	rgb(23, 52, 133)
HSL	hsl(224, 71%, 31%)
HSV	hsv(224, 83%, 52%)
CMYK	cmyk(82.7%, 60.9%, 0%, 47.8%)
CIE-LAB	lab(24.74, 21.41, -48.38)
CIE-LCH	lch(24.74, 52.91, 293.87°)
OKLab	oklab(35.91% -0.0124 -0.1399)
OKLCH	oklch(35.91% 0.14 264.9)
XYZ	xyz(5.8135, 4.3309, 22.7153)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#173485 #856817

analogous

#176B85 #173485 #311785

triadic

#173485 #851734 #348517

tetradic

#173485 #85176B #856817 #178531

square

#173485 #85176B #856817 #178531

split-complementary

#173485 #853117 #6B8517

monochromatic

#050B1D #0E2051 #173485 #2048B9 #3A65DD

Accessibility & contrast

On white

11.25

#173485 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#173485 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #173485

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##173485	#FFFFFF	#000000	##FFFFFF
##173485	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004088

Deuteranopia (green-blind)

#003683

Tritanopia (blue-blind)

#004957

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #173485;
/* rgb */ color: rgb(23, 52, 133);
/* oklch */ color: oklch(35.9% 0.140 264.9);

Tailwind

colors: {
  custom: {
    50: '#686ba9',
    500: '#173485',
    950: '#000000',
  },
}

SCSS

$custom: #173485;
$custom-light: #686ba9;
$custom-dark: #000000;

JSON

{
  "hex": "#173485",
  "rgb": {
    "r": 23,
    "g": 52,
    "b": 133
  },
  "hsl": {
    "h": 224.182,
    "s": 70.513,
    "l": 30.588
  },
  "oklch": {
    "l": 0.3591,
    "c": 0.14041,
    "h": 264.9
  },
  "luminance": 0.04332
}

Semantic roles & 50–950 ramp

primary

#173485

secondary

#B9993F

accent

#BE3BED

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #173485

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

Preview Lab → · Contrast checker → · Palette generator →