#5170E7#5170E7

#5170E7 is a mid, vivid blue. Relative luminance 0.191; OKLCH L 58.6% C 0.183 H 269.1°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#5170E7
RGB	rgb(81, 112, 231)
HSL	hsl(228, 76%, 61%)
HSV	hsv(228, 65%, 91%)
CMYK	cmyk(64.9%, 51.5%, 0%, 9.4%)
CIE-LAB	lab(50.81, 26.32, -63.79)
CIE-LCH	lch(50.81, 69.00, 292.42°)
OKLab	oklab(58.57% -0.0029 -0.1831)
OKLCH	oklch(58.57% 0.183 269.1)
XYZ	xyz(23.6064, 19.1050, 78.0294)
Luminance	0.1911 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5170E7 #E7C851

analogous

#51BBE7 #5170E7 #7D51E7

triadic

#5170E7 #E75170 #70E751

tetradic

#5170E7 #E751BB #E7C851 #51E77D

square

#5170E7 #E751BB #E7C851 #51E77D

split-complementary

#5170E7 #E77D51 #BBE751

monochromatic

#1735A7 #1E46DC #5170E7 #879CEE #BDC8F6

Accessibility & contrast

On white

4.36

#5170E7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#5170E7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5170E7

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5170E7	#FFFFFF	#000000	##000000
##5170E7	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2680EB

Deuteranopia (green-blind)

#0073E5

Tritanopia (blue-blind)

#008CA1

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #5170e7;
/* rgb */ color: rgb(81, 112, 231);
/* oklch */ color: oklch(58.6% 0.183 269.1);

Tailwind

colors: {
  custom: {
    50: '#9198ef',
    500: '#5170e7',
    950: '#000000',
  },
}

SCSS

$custom: #5170e7;
$custom-light: #9198ef;
$custom-dark: #000000;

JSON

{
  "hex": "#5170e7",
  "rgb": {
    "r": 81,
    "g": 112,
    "b": 231
  },
  "hsl": {
    "h": 227.6,
    "s": 75.758,
    "l": 61.176
  },
  "oklch": {
    "l": 0.58572,
    "c": 0.18312,
    "h": 269.1
  },
  "luminance": 0.19107
}

Semantic roles & 50–950 ramp

primary

#5170E7

secondary

#E6DAAE

accent

#AE0ED8

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D17

muted

#7E7E85

Preview Lab

Preview with #5170E7

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

Preview Lab → · Contrast checker → · Palette generator →