#5170F0#5170F0

#5170F0 is a mid, vivid blue. Relative luminance 0.196; OKLCH L 59.2% C 0.195 H 269.3°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#5170F0
RGB	rgb(81, 112, 240)
HSL	hsl(228, 84%, 63%)
HSV	hsv(228, 66%, 94%)
CMYK	cmyk(66.3%, 53.3%, 0%, 5.9%)
CIE-LAB	lab(51.41, 29.41, -67.85)
CIE-LCH	lch(51.41, 73.95, 293.43°)
OKLab	oklab(59.22% -0.0022 -0.1951)
OKLCH	oklch(59.22% 0.195 269.3)
XYZ	xyz(24.9103, 19.6266, 84.8967)
Luminance	0.1963 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5170F0 #F0D151

analogous

#51BFF0 #5170F0 #8151F0

triadic

#5170F0 #F05170 #70F051

tetradic

#5170F0 #F051BF #F0D151 #51F081

square

#5170F0 #F051BF #F0D151 #51F081

split-complementary

#5170F0 #F08151 #BFF051

monochromatic

#1030B7 #1942EB #5170F0 #899EF5 #C2CDFA

Accessibility & contrast

On white

4.26

#5170F0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#5170F0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5170F0

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5170F0	#FFFFFF	#000000	##000000
##5170F0	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)

#0E82F4

Deuteranopia (green-blind)

#0074ED

Tritanopia (blue-blind)

#008FA5

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #5170f0;
/* rgb */ color: rgb(81, 112, 240);
/* oklch */ color: oklch(59.2% 0.195 269.3);

Tailwind

colors: {
  custom: {
    50: '#9298f6',
    500: '#5170f0',
    950: '#000000',
  },
}

SCSS

$custom: #5170f0;
$custom-light: #9298f6;
$custom-dark: #000000;

JSON

{
  "hex": "#5170f0",
  "rgb": {
    "r": 81,
    "g": 112,
    "b": 240
  },
  "hsl": {
    "h": 228.302,
    "s": 84.127,
    "l": 62.941
  },
  "oklch": {
    "l": 0.59219,
    "c": 0.19507,
    "h": 269.3
  },
  "luminance": 0.19629
}

Semantic roles & 50–950 ramp

primary

#5170F0

secondary

#EBE0B2

accent

#B605E1

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0D17

muted

#7E7E85

Preview Lab

Preview with #5170F0

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

Preview Lab → · Contrast checker → · Palette generator →