#515BF4#515BF4

#515BF4 is a mid, highly saturated blue. Relative luminance 0.158; OKLCH L 55.8% C 0.225 H 273.6°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#515BF4
RGB	rgb(81, 91, 244)
HSL	hsl(236, 88%, 64%)
HSV	hsv(236, 67%, 96%)
CMYK	cmyk(66.8%, 62.7%, 0%, 4.3%)
CIE-LAB	lab(46.66, 43.55, -77.82)
CIE-LCH	lch(46.66, 89.18, 299.23°)
OKLab	oklab(55.78% 0.0142 -0.2246)
OKLCH	oklch(55.78% 0.225 273.6)
XYZ	xyz(23.4581, 15.7610, 87.3764)
Luminance	0.1576 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BF4 #F4EA51

analogous

#51ACF4 #515BF4 #9851F4

triadic

#515BF4 #F4515B #5BF451

tetradic

#515BF4 #F451AC #F4EA51 #51F498

square

#515BF4 #F451AC #F4EA51 #51F498

split-complementary

#515BF4 #F49851 #ACF451

monochromatic

#0C17BF #1725F0 #515BF4 #8B91F8 #C4C8FB

Accessibility & contrast

On white

5.06

#515BF4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#515BF4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BF4

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BF4	#FFFFFF	#000000	##FFFFFF
##515BF4	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076F9

Deuteranopia (green-blind)

#0067F1

Tritanopia (blue-blind)

#00829F

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #515bf4;
/* rgb */ color: rgb(81, 91, 244);
/* oklch */ color: oklch(55.8% 0.225 273.6);

Tailwind

colors: {
  custom: {
    50: '#9489f9',
    500: '#515bf4',
    950: '#000000',
  },
}

SCSS

$custom: #515bf4;
$custom-light: #9489f9;
$custom-dark: #000000;

JSON

{
  "hex": "#515bf4",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 244
  },
  "hsl": {
    "h": 236.319,
    "s": 88.108,
    "l": 63.725
  },
  "oklch": {
    "l": 0.55779,
    "c": 0.22501,
    "h": 273.6
  },
  "luminance": 0.15763
}

Semantic roles & 50–950 ramp

primary

#515BF4

secondary

#EDEAB4

accent

#D701E5

background

#FAF8FF

surface

#F3F0FF

border

#CDCBD7

text

#0F0B17

muted

#7F7C85

Preview Lab

Preview with #515BF4

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

Preview Lab → · Contrast checker → · Palette generator →