#515DD5#515DD5

#515DD5 is a mid, vivid blue. Relative luminance 0.144; OKLCH L 53.6% C 0.183 H 274.2°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#515DD5
RGB	rgb(81, 93, 213)
HSL	hsl(235, 61%, 58%)
HSV	hsv(235, 62%, 84%)
CMYK	cmyk(62%, 56.3%, 0%, 16.5%)
CIE-LAB	lab(44.77, 32.00, -63.36)
CIE-LCH	lch(44.77, 70.98, 296.80°)
OKLab	oklab(53.65% 0.0133 -0.1821)
OKLCH	oklch(53.65% 0.183 274.2)
XYZ	xyz(19.3140, 14.3805, 64.6958)
Luminance	0.1438 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515DD5 #D5C951

analogous

#519FD5 #515DD5 #8751D5

triadic

#515DD5 #D5515D #5DD551

tetradic

#515DD5 #D5519F #D5C951 #51D587

square

#515DD5 #D5519F #D5C951 #51D587

split-complementary

#515DD5 #D58751 #9FD551

monochromatic

#212B8A #2D3ABC #515DD5 #828BE1 #B4B9ED

Accessibility & contrast

On white

5.42

#515DD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.88

#515DD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515DD5

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515DD5	#FFFFFF	#000000	##FFFFFF
##515DD5	1.00	5.42	3.88	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.88	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0070D9

Deuteranopia (green-blind)

#0064D3

Tritanopia (blue-blind)

#007A90

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #515dd5;
/* rgb */ color: rgb(81, 93, 213);
/* oklch */ color: oklch(53.6% 0.183 274.2);

Tailwind

colors: {
  custom: {
    50: '#8f8ae3',
    500: '#515dd5',
    950: '#000000',
  },
}

SCSS

$custom: #515dd5;
$custom-light: #8f8ae3;
$custom-dark: #000000;

JSON

{
  "hex": "#515dd5",
  "rgb": {
    "r": 81,
    "g": 93,
    "b": 213
  },
  "hsl": {
    "h": 234.545,
    "s": 61.111,
    "l": 57.647
  },
  "oklch": {
    "l": 0.53649,
    "c": 0.18254,
    "h": 274.2
  },
  "luminance": 0.14382
}

Semantic roles & 50–950 ramp

primary

#515DD5

secondary

#DBD7A6

accent

#D644E4

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0B15

muted

#7E7C84

Preview Lab

Preview with #515DD5

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

Preview Lab → · Contrast checker → · Palette generator →