#5173CD#5173CD

#5173CD is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.4% C 0.144 H 266.4°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#5173CD
RGB	rgb(81, 115, 205)
HSL	hsl(224, 55%, 56%)
HSV	hsv(224, 60%, 80%)
CMYK	cmyk(60.5%, 43.9%, 0%, 19.6%)
CIE-LAB	lab(50.00, 15.57, -50.38)
CIE-LCH	lch(50.00, 52.73, 287.18°)
OKLab	oklab(57.44% -0.0091 -0.1436)
OKLCH	oklch(57.44% 0.144 266.4)
XYZ	xyz(20.5398, 18.4168, 60.2182)
Luminance	0.1842 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5173CD #CDAB51

analogous

#51B1CD #5173CD #6D51CD

triadic

#5173CD #CD5173 #73CD51

tetradic

#5173CD #CD51B1 #CDAB51 #51CD6D

square

#5173CD #CD51B1 #CDAB51 #51CD6D

split-complementary

#5173CD #CD6D51 #B1CD51

monochromatic

#253D7F #3254AF #5173CD #8199DB #B0BFE8

Accessibility & contrast

On white

4.48

#5173CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#5173CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5173CD

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5173CD	#FFFFFF	#000000	##000000
##5173CD	1.00	4.48	4.68	4.68
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A7DD0

Deuteranopia (green-blind)

#3772CB

Tritanopia (blue-blind)

#008796

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #5173cd;
/* rgb */ color: rgb(81, 115, 205);
/* oklch */ color: oklch(57.4% 0.144 266.4);

Tailwind

colors: {
  custom: {
    50: '#8c9add',
    500: '#5173cd',
    950: '#000000',
  },
}

SCSS

$custom: #5173cd;
$custom-light: #8c9add;
$custom-dark: #000000;

JSON

{
  "hex": "#5173cd",
  "rgb": {
    "r": 81,
    "g": 115,
    "b": 205
  },
  "hsl": {
    "h": 223.548,
    "s": 55.357,
    "l": 56.078
  },
  "oklch": {
    "l": 0.57438,
    "c": 0.14391,
    "h": 266.4
  },
  "luminance": 0.18419
}

Semantic roles & 50–950 ramp

primary

#5173CD

secondary

#D7C8A3

accent

#B649DF

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5173CD

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

Preview Lab → · Contrast checker → · Palette generator →