#515DD3#515DD3

#515DD3 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 53.5% C 0.180 H 274.2°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#515DD3
RGB	rgb(81, 93, 211)
HSL	hsl(234, 60%, 57%)
HSV	hsv(234, 62%, 83%)
CMYK	cmyk(61.6%, 55.9%, 0%, 17.3%)
CIE-LAB	lab(44.63, 31.33, -62.44)
CIE-LCH	lch(44.63, 69.86, 296.64°)
OKLab	oklab(53.5% 0.0132 -0.1794)
OKLCH	oklch(53.5% 0.18 274.2)
XYZ	xyz(19.0617, 14.2796, 63.3671)
Luminance	0.1428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515DD3 #D3C751

analogous

#519ED3 #515DD3 #8651D3

triadic

#515DD3 #D3515D #5DD351

tetradic

#515DD3 #D3519E #D3C751 #51D386

square

#515DD3 #D3519E #D3C751 #51D386

split-complementary

#515DD3 #D38651 #9ED351

monochromatic

#222C87 #2F3BB8 #515DD3 #828ADF #B3B8EC

Accessibility & contrast

On white

5.45

#515DD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#515DD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515DD3

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515DD3	#FFFFFF	#000000	##FFFFFF
##515DD3	1.00	5.45	3.86	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FD7

Deuteranopia (green-blind)

#0064D1

Tritanopia (blue-blind)

#00798F

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #515dd3;
/* rgb */ color: rgb(81, 93, 211);
/* oklch */ color: oklch(53.5% 0.180 274.2);

Tailwind

colors: {
  custom: {
    50: '#8e8ae1',
    500: '#515dd3',
    950: '#000000',
  },
}

SCSS

$custom: #515dd3;
$custom-light: #8e8ae1;
$custom-dark: #000000;

JSON

{
  "hex": "#515dd3",
  "rgb": {
    "r": 81,
    "g": 93,
    "b": 211
  },
  "hsl": {
    "h": 234.462,
    "s": 59.633,
    "l": 57.255
  },
  "oklch": {
    "l": 0.53497,
    "c": 0.17986,
    "h": 274.2
  },
  "luminance": 0.14281
}

Semantic roles & 50–950 ramp

primary

#515DD3

secondary

#DAD5A6

accent

#D445E3

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #515DD3

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

Preview Lab → · Contrast checker → · Palette generator →