#515BD8#515BD8

#515BD8 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.5% C 0.189 H 274.6°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#515BD8
RGB	rgb(81, 91, 216)
HSL	hsl(236, 63%, 58%)
HSV	hsv(236, 63%, 85%)
CMYK	cmyk(62.5%, 57.9%, 0%, 15.3%)
CIE-LAB	lab(44.50, 34.24, -65.51)
CIE-LCH	lch(44.50, 73.92, 297.59°)
OKLab	oklab(53.51% 0.0151 -0.1884)
OKLCH	oklch(53.51% 0.189 274.6)
XYZ	xyz(19.5250, 14.1878, 66.6620)
Luminance	0.1419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BD8 #D8CE51

analogous

#519ED8 #515BD8 #8B51D8

triadic

#515BD8 #D8515B #5BD851

tetradic

#515BD8 #D8519E #D8CE51 #51D88B

square

#515BD8 #D8519E #D8CE51 #51D88B

split-complementary

#515BD8 #D88B51 #9ED851

monochromatic

#20288F #2B36C1 #515BD8 #838AE3 #B5B9EE

Accessibility & contrast

On white

5.47

#515BD8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#515BD8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BD8

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BD8	#FFFFFF	#000000	##FFFFFF
##515BD8	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FDC

Deuteranopia (green-blind)

#0063D5

Tritanopia (blue-blind)

#007991

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #515bd8;
/* rgb */ color: rgb(81, 91, 216);
/* oklch */ color: oklch(53.5% 0.189 274.6);

Tailwind

colors: {
  custom: {
    50: '#8f89e5',
    500: '#515bd8',
    950: '#000000',
  },
}

SCSS

$custom: #515bd8;
$custom-light: #8f89e5;
$custom-dark: #000000;

JSON

{
  "hex": "#515bd8",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 216
  },
  "hsl": {
    "h": 235.556,
    "s": 63.38,
    "l": 58.235
  },
  "oklch": {
    "l": 0.53514,
    "c": 0.18902,
    "h": 274.6
  },
  "luminance": 0.14189
}

Semantic roles & 50–950 ramp

primary

#515BD8

secondary

#DDD9A8

accent

#DA41E6

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #515BD8

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

Preview Lab → · Contrast checker → · Palette generator →