#515BF2#515BF2

#515BF2 is a mid, highly saturated blue. Relative luminance 0.156; OKLCH L 55.6% C 0.223 H 273.7°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#515BF2
RGB	rgb(81, 91, 242)
HSL	hsl(236, 86%, 63%)
HSV	hsv(236, 67%, 95%)
CMYK	cmyk(66.5%, 62.4%, 0%, 5.1%)
CIE-LAB	lab(46.50, 42.89, -76.96)
CIE-LCH	lch(46.50, 88.11, 299.13°)
OKLab	oklab(55.61% 0.0144 -0.222)
OKLCH	oklch(55.61% 0.223 273.7)
XYZ	xyz(23.1561, 15.6402, 85.7857)
Luminance	0.1564 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BF2 #F2E851

analogous

#51ABF2 #515BF2 #9751F2

triadic

#515BF2 #F2515B #5BF251

tetradic

#515BF2 #F251AB #F2E851 #51F297

square

#515BF2 #F251AB #F2E851 #51F297

split-complementary

#515BF2 #F29751 #ABF251

monochromatic

#0E19BB #1825EE #515BF2 #8A91F6 #C3C6FB

Accessibility & contrast

On white

5.09

#515BF2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#515BF2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BF2

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BF2	#FFFFFF	#000000	##FFFFFF
##515BF2	1.00	5.09	4.13	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076F7

Deuteranopia (green-blind)

#0067EF

Tritanopia (blue-blind)

#00829E

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #515bf2;
/* rgb */ color: rgb(81, 91, 242);
/* oklch */ color: oklch(55.6% 0.223 273.7);

Tailwind

colors: {
  custom: {
    50: '#9489f7',
    500: '#515bf2',
    950: '#000000',
  },
}

SCSS

$custom: #515bf2;
$custom-light: #9489f7;
$custom-dark: #000000;

JSON

{
  "hex": "#515bf2",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 242
  },
  "hsl": {
    "h": 236.273,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.55612,
    "c": 0.22251,
    "h": 273.7
  },
  "luminance": 0.15642
}

Semantic roles & 50–950 ramp

primary

#515BF2

secondary

#ECE9B3

accent

#D503E3

background

#FAF8FF

surface

#F3F0FF

border

#CDCBD7

text

#0F0B17

muted

#7F7C85

Preview Lab

Preview with #515BF2

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

Preview Lab → · Contrast checker → · Palette generator →