#5173AF#5173AF

#5173AF is a mid, moderate blue. Relative luminance 0.171; OKLCH L 55.7% C 0.102 H 261.2°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#5173AF
RGB	rgb(81, 115, 175)
HSL	hsl(218, 37%, 50%)
HSV	hsv(218, 54%, 69%)
CMYK	cmyk(53.7%, 34.3%, 0%, 31.4%)
CIE-LAB	lab(48.39, 5.59, -35.65)
CIE-LCH	lch(48.39, 36.08, 278.91°)
OKLab	oklab(55.67% -0.0156 -0.1005)
OKLCH	oklch(55.67% 0.102 261.2)
XYZ	xyz(17.2593, 17.1047, 42.9412)
Luminance	0.1711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5173AF #AF8D51

analogous

#51A2AF #5173AF #5E51AF

triadic

#5173AF #AF5173 #73AF51

tetradic

#5173AF #AF51A2 #AF8D51 #51AF5E

square

#5173AF #AF51A2 #AF8D51 #51AF5E

split-complementary

#5173AF #AF5E51 #A2AF51

monochromatic

#2A3C5C #3D5785 #5173AF #7B95C2 #A5B6D6

Accessibility & contrast

On white

4.75

#5173AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#5173AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5173AF

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5173AF	#FFFFFF	#000000	##FFFFFF
##5173AF	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B78B1

Deuteranopia (green-blind)

#506FAE

Tritanopia (blue-blind)

#1F8089

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #5173af;
/* rgb */ color: rgb(81, 115, 175);
/* oklch */ color: oklch(55.7% 0.102 261.2);

Tailwind

colors: {
  custom: {
    50: '#889bc7',
    500: '#5173af',
    950: '#000000',
  },
}

SCSS

$custom: #5173af;
$custom-light: #889bc7;
$custom-dark: #000000;

JSON

{
  "hex": "#5173af",
  "rgb": {
    "r": 81,
    "g": 115,
    "b": 175
  },
  "hsl": {
    "h": 218.298,
    "s": 37.008,
    "l": 50.196
  },
  "oklch": {
    "l": 0.55674,
    "c": 0.10174,
    "h": 261.2
  },
  "luminance": 0.17106
}

Semantic roles & 50–950 ramp

primary

#5173AF

secondary

#C3B499

accent

#A45BCD

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #5173AF

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

Preview Lab → · Contrast checker → · Palette generator →