#5173DC#5173DC

#5173DC is a mid, vivid blue. Relative luminance 0.192; OKLCH L 58.4% C 0.165 H 267.6°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#5173DC
RGB	rgb(81, 115, 220)
HSL	hsl(225, 67%, 59%)
HSV	hsv(225, 63%, 86%)
CMYK	cmyk(63.2%, 47.7%, 0%, 13.7%)
CIE-LAB	lab(50.89, 20.69, -57.46)
CIE-LCH	lch(50.89, 61.07, 289.80°)
OKLab	oklab(58.41% -0.0069 -0.1644)
OKLCH	oklch(58.41% 0.165 267.6)
XYZ	xyz(22.4379, 19.1761, 70.2152)
Luminance	0.1918 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5173DC #DCBA51

analogous

#51B8DC #5173DC #7551DC

triadic

#5173DC #DC5173 #73DC51

tetradic

#5173DC #DC51B8 #DCBA51 #51DC75

square

#5173DC #DC51B8 #DCBA51 #51DC75

split-complementary

#5173DC #DC7551 #B8DC51

monochromatic

#1E3B95 #284FC8 #5173DC #849CE6 #B7C5F0

Accessibility & contrast

On white

4.34

#5173DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#5173DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5173DC

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5173DC	#FFFFFF	#000000	##000000
##5173DC	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D80E0

Deuteranopia (green-blind)

#2073DA

Tritanopia (blue-blind)

#008B9D

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #5173dc;
/* rgb */ color: rgb(81, 115, 220);
/* oklch */ color: oklch(58.4% 0.165 267.6);

Tailwind

colors: {
  custom: {
    50: '#8f9ae7',
    500: '#5173dc',
    950: '#000000',
  },
}

SCSS

$custom: #5173dc;
$custom-light: #8f9ae7;
$custom-dark: #000000;

JSON

{
  "hex": "#5173dc",
  "rgb": {
    "r": 81,
    "g": 115,
    "b": 220
  },
  "hsl": {
    "h": 225.324,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.58411,
    "c": 0.16458,
    "h": 267.6
  },
  "luminance": 0.19178
}

Semantic roles & 50–950 ramp

primary

#5173DC

secondary

#E0D2A9

accent

#C03EE9

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #5173DC

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

Preview Lab → · Contrast checker → · Palette generator →