#5173E5#5173E5

#5173E5 is a mid, vivid blue. Relative luminance 0.197; OKLCH L 59.0% C 0.177 H 268.1°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#5173E5
RGB	rgb(81, 115, 229)
HSL	hsl(226, 74%, 61%)
HSV	hsv(226, 65%, 90%)
CMYK	cmyk(64.6%, 49.8%, 0%, 10.2%)
CIE-LAB	lab(51.46, 23.78, -61.62)
CIE-LCH	lch(51.46, 66.05, 291.10°)
OKLab	oklab(59.02% -0.0058 -0.1767)
OKLCH	oklch(59.02% 0.177 268.1)
XYZ	xyz(23.6621, 19.6658, 76.6624)
Luminance	0.1967 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5173E5 #E5C351

analogous

#51BDE5 #5173E5 #7951E5

triadic

#5173E5 #E55173 #73E551

tetradic

#5173E5 #E551BD #E5C351 #51E579

square

#5173E5 #E551BD #E5C351 #51E579

split-complementary

#5173E5 #E57951 #BDE551

monochromatic

#1838A3 #204BD8 #5173E5 #869EED #BBC9F5

Accessibility & contrast

On white

4.26

#5173E5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#5173E5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5173E5

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5173E5	#FFFFFF	#000000	##000000
##5173E5	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3282E9

Deuteranopia (green-blind)

#0074E3

Tritanopia (blue-blind)

#008EA1

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #5173e5;
/* rgb */ color: rgb(81, 115, 229);
/* oklch */ color: oklch(59.0% 0.177 268.1);

Tailwind

colors: {
  custom: {
    50: '#909aee',
    500: '#5173e5',
    950: '#000000',
  },
}

SCSS

$custom: #5173e5;
$custom-light: #909aee;
$custom-dark: #000000;

JSON

{
  "hex": "#5173e5",
  "rgb": {
    "r": 81,
    "g": 115,
    "b": 229
  },
  "hsl": {
    "h": 226.216,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.59021,
    "c": 0.17678,
    "h": 268.1
  },
  "luminance": 0.19668
}

Semantic roles & 50–950 ramp

primary

#5173E5

secondary

#E5D8AD

accent

#A80FD6

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #5173E5

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

Preview Lab → · Contrast checker → · Palette generator →