#515FE4#515FE4

#515FE4 is a mid, vivid blue. Relative luminance 0.155; OKLCH L 55.2% C 0.200 H 273.3°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#515FE4
RGB	rgb(81, 95, 228)
HSL	hsl(234, 73%, 61%)
HSV	hsv(234, 64%, 89%)
CMYK	cmyk(64.5%, 58.3%, 0%, 10.6%)
CIE-LAB	lab(46.36, 35.80, -69.31)
CIE-LCH	lch(46.36, 78.02, 297.32°)
OKLab	oklab(55.17% 0.0117 -0.1996)
OKLCH	oklch(55.17% 0.2 273.3)
XYZ	xyz(21.4845, 15.5333, 75.2498)
Luminance	0.1553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515FE4 #E4D651

analogous

#51A8E4 #515FE4 #8D51E4

triadic

#515FE4 #E4515F #5FE451

tetradic

#515FE4 #E451A8 #E4D651 #51E48D

square

#515FE4 #E451A8 #E4D651 #51E48D

split-complementary

#515FE4 #E48D51 #A8E451

monochromatic

#1926A2 #2133D7 #515FE4 #8690EC #BBC0F4

Accessibility & contrast

On white

5.11

#515FE4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#515FE4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515FE4

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515FE4	#FFFFFF	#000000	##FFFFFF
##515FE4	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075E8

Deuteranopia (green-blind)

#0067E1

Tritanopia (blue-blind)

#008098

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #515fe4;
/* rgb */ color: rgb(81, 95, 228);
/* oklch */ color: oklch(55.2% 0.200 273.3);

Tailwind

colors: {
  custom: {
    50: '#918ced',
    500: '#515fe4',
    950: '#000000',
  },
}

SCSS

$custom: #515fe4;
$custom-light: #918ced;
$custom-dark: #000000;

JSON

{
  "hex": "#515fe4",
  "rgb": {
    "r": 81,
    "g": 95,
    "b": 228
  },
  "hsl": {
    "h": 234.286,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.5517,
    "c": 0.1999,
    "h": 273.3
  },
  "luminance": 0.15535
}

Semantic roles & 50–950 ramp

primary

#515FE4

secondary

#E4DFAC

accent

#C210D5

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #515FE4

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

Preview Lab → · Contrast checker → · Palette generator →