#516EE1#516EE1

#516EE1 is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.8% C 0.178 H 269.5°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#516EE1
RGB	rgb(81, 110, 225)
HSL	hsl(228, 71%, 60%)
HSV	hsv(228, 64%, 88%)
CMYK	cmyk(64%, 51.1%, 0%, 11.8%)
CIE-LAB	lab(49.90, 25.50, -61.88)
CIE-LCH	lch(49.90, 66.93, 292.40°)
OKLab	oklab(57.76% -0.0016 -0.1775)
OKLCH	oklch(57.76% 0.178 269.5)
XYZ	xyz(22.5553, 18.3354, 73.5700)
Luminance	0.1834 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#516EE1 #E1C451

analogous

#51B6E1 #516EE1 #7C51E1

triadic

#516EE1 #E1516E #6EE151

tetradic

#516EE1 #E151B6 #E1C451 #51E17C

square

#516EE1 #E151B6 #E1C451 #51E17C

split-complementary

#516EE1 #E17C51 #B6E151

monochromatic

#1B359D #2447D1 #516EE1 #8599EA #B9C5F3

Accessibility & contrast

On white

4.50

#516EE1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#516EE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #516EE1

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##516EE1	#FFFFFF	#000000	##000000
##516EE1	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#297DE5

Deuteranopia (green-blind)

#0071DF

Tritanopia (blue-blind)

#00899D

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #516ee1;
/* rgb */ color: rgb(81, 110, 225);
/* oklch */ color: oklch(57.8% 0.178 269.5);

Tailwind

colors: {
  custom: {
    50: '#9097eb',
    500: '#516ee1',
    950: '#000000',
  },
}

SCSS

$custom: #516ee1;
$custom-light: #9097eb;
$custom-dark: #000000;

JSON

{
  "hex": "#516ee1",
  "rgb": {
    "r": 81,
    "g": 110,
    "b": 225
  },
  "hsl": {
    "h": 227.917,
    "s": 70.588,
    "l": 60
  },
  "oklch": {
    "l": 0.57759,
    "c": 0.17752,
    "h": 269.5
  },
  "luminance": 0.18337
}

Semantic roles & 50–950 ramp

primary

#516EE1

secondary

#E3D7AB

accent

#C93AED

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #516EE1

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

Preview Lab → · Contrast checker → · Palette generator →