#5173EB#5173EB

#5173EB is a mid, vivid blue. Relative luminance 0.200; OKLCH L 59.4% C 0.185 H 268.4°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#5173EB
RGB	rgb(81, 115, 235)
HSL	hsl(227, 79%, 62%)
HSV	hsv(227, 66%, 92%)
CMYK	cmyk(65.5%, 51.1%, 0%, 7.8%)
CIE-LAB	lab(51.84, 25.84, -64.36)
CIE-LCH	lch(51.84, 69.35, 291.87°)
OKLab	oklab(59.44% -0.0052 -0.1847)
OKLCH	oklch(59.44% 0.185 268.4)
XYZ	xyz(24.5143, 20.0067, 81.1509)
Luminance	0.2001 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5173EB #EBC951

analogous

#51C0EB #5173EB #7C51EB

triadic

#5173EB #EB5173 #73EB51

tetradic

#5173EB #EB51C0 #EBC951 #51EB7C

square

#5173EB #EB51C0 #EBC951 #51EB7C

split-complementary

#5173EB #EB7C51 #C0EB51

monochromatic

#1436AE #1A47E5 #5173EB #889FF1 #BFCBF8

Accessibility & contrast

On white

4.20

#5173EB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#5173EB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5173EB

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5173EB	#FFFFFF	#000000	##000000
##5173EB	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A83EF

Deuteranopia (green-blind)

#0075E9

Tritanopia (blue-blind)

#008FA4

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #5173eb;
/* rgb */ color: rgb(81, 115, 235);
/* oklch */ color: oklch(59.4% 0.185 268.4);

Tailwind

colors: {
  custom: {
    50: '#919af2',
    500: '#5173eb',
    950: '#000000',
  },
}

SCSS

$custom: #5173eb;
$custom-light: #919af2;
$custom-dark: #000000;

JSON

{
  "hex": "#5173eb",
  "rgb": {
    "r": 81,
    "g": 115,
    "b": 235
  },
  "hsl": {
    "h": 226.753,
    "s": 79.381,
    "l": 61.961
  },
  "oklch": {
    "l": 0.59439,
    "c": 0.18481,
    "h": 268.4
  },
  "luminance": 0.20009
}

Semantic roles & 50–950 ramp

primary

#5173EB

secondary

#E8DCB0

accent

#AD0ADC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #5173EB

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

Preview Lab → · Contrast checker → · Palette generator →