#5173E8#5173E8

#5173E8 is a mid, vivid blue. Relative luminance 0.198; OKLCH L 59.2% C 0.181 H 268.3°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#5173E8
RGB	rgb(81, 115, 232)
HSL	hsl(226, 77%, 61%)
HSV	hsv(226, 65%, 91%)
CMYK	cmyk(65.1%, 50.4%, 0%, 9%)
CIE-LAB	lab(51.65, 24.81, -62.99)
CIE-LCH	lch(51.65, 67.70, 291.49°)
OKLab	oklab(59.23% -0.0055 -0.1807)
OKLCH	oklch(59.23% 0.181 268.3)
XYZ	xyz(24.0846, 19.8348, 78.8875)
Luminance	0.1984 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5173E8 #E8C651

analogous

#51BFE8 #5173E8 #7B51E8

triadic

#5173E8 #E85173 #73E851

tetradic

#5173E8 #E851BF #E8C651 #51E87B

square

#5173E8 #E851BF #E8C651 #51E87B

split-complementary

#5173E8 #E87B51 #BFE851

monochromatic

#1637A8 #1D49DE #5173E8 #879EEF #BDCAF6

Accessibility & contrast

On white

4.23

#5173E8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#5173E8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5173E8

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5173E8	#FFFFFF	#000000	##000000
##5173E8	1.00	4.23	4.97	4.97
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E82EC

Deuteranopia (green-blind)

#0075E6

Tritanopia (blue-blind)

#008EA3

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #5173e8;
/* rgb */ color: rgb(81, 115, 232);
/* oklch */ color: oklch(59.2% 0.181 268.3);

Tailwind

colors: {
  custom: {
    50: '#919af0',
    500: '#5173e8',
    950: '#000000',
  },
}

SCSS

$custom: #5173e8;
$custom-light: #919af0;
$custom-dark: #000000;

JSON

{
  "hex": "#5173e8",
  "rgb": {
    "r": 81,
    "g": 115,
    "b": 232
  },
  "hsl": {
    "h": 226.49,
    "s": 76.65,
    "l": 61.373
  },
  "oklch": {
    "l": 0.59229,
    "c": 0.1808,
    "h": 268.3
  },
  "luminance": 0.19837
}

Semantic roles & 50–950 ramp

primary

#5173E8

secondary

#E7DAAE

accent

#AB0DD9

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #5173E8

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

Preview Lab → · Contrast checker → · Palette generator →