#515FDA#515FDA

#515FDA is a mid, vivid blue. Relative luminance 0.150; OKLCH L 54.4% C 0.187 H 273.6°. Best body text is #FFFFFF at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#515FDA
RGB	rgb(81, 95, 218)
HSL	hsl(234, 65%, 59%)
HSV	hsv(234, 63%, 85%)
CMYK	cmyk(62.8%, 56.4%, 0%, 14.5%)
CIE-LAB	lab(45.63, 32.44, -64.83)
CIE-LCH	lch(45.63, 72.49, 296.58°)
OKLab	oklab(54.4% 0.0116 -0.1864)
OKLCH	oklch(54.4% 0.187 273.6)
XYZ	xyz(20.1362, 14.9940, 68.1491)
Luminance	0.1500 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515FDA #DACC51

analogous

#51A3DA #515FDA #8751DA

triadic

#515FDA #DA515F #5FDA51

tetradic

#515FDA #DA51A3 #DACC51 #51DA87

square

#515FDA #DA51A3 #DACC51 #51DA87

split-complementary

#515FDA #DA8751 #A3DA51

monochromatic

#1F2B92 #2A39C4 #515FDA #838DE5 #B6BCEF

Accessibility & contrast

On white

5.25

#515FDA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#515FDA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515FDA

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515FDA	#FFFFFF	#000000	##FFFFFF
##515FDA	1.00	5.25	4.00	5.25
#FFFFFF	5.25	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072DE

Deuteranopia (green-blind)

#0066D8

Tritanopia (blue-blind)

#007D93

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #515fda;
/* rgb */ color: rgb(81, 95, 218);
/* oklch */ color: oklch(54.4% 0.187 273.6);

Tailwind

colors: {
  custom: {
    50: '#8f8ce6',
    500: '#515fda',
    950: '#000000',
  },
}

SCSS

$custom: #515fda;
$custom-light: #8f8ce6;
$custom-dark: #000000;

JSON

{
  "hex": "#515fda",
  "rgb": {
    "r": 81,
    "g": 95,
    "b": 218
  },
  "hsl": {
    "h": 233.869,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.54397,
    "c": 0.18672,
    "h": 273.6
  },
  "luminance": 0.14996
}

Semantic roles & 50–950 ramp

primary

#515FDA

secondary

#DED9A8

accent

#D740E8

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #515FDA

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

Preview Lab → · Contrast checker → · Palette generator →