#515BD5#515BD5

#515BD5 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 53.3% C 0.185 H 274.7°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#515BD5
RGB	rgb(81, 91, 213)
HSL	hsl(235, 61%, 58%)
HSV	hsv(235, 62%, 84%)
CMYK	cmyk(62%, 57.3%, 0%, 16.5%)
CIE-LAB	lab(44.28, 33.24, -64.16)
CIE-LCH	lch(44.28, 72.25, 297.39°)
OKLab	oklab(53.28% 0.0151 -0.1844)
OKLCH	oklch(53.28% 0.185 274.7)
XYZ	xyz(19.1407, 14.0340, 64.6381)
Luminance	0.1404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#515BD5 #D5CB51

analogous

#519DD5 #515BD5 #8951D5

triadic

#515BD5 #D5515B #5BD551

tetradic

#515BD5 #D5519D #D5CB51 #51D589

square

#515BD5 #D5519D #D5CB51 #51D589

split-complementary

#515BD5 #D58951 #9DD551

monochromatic

#21298A #2D38BC #515BD5 #8289E1 #B4B8ED

Accessibility & contrast

On white

5.52

#515BD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#515BD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #515BD5

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##515BD5	#FFFFFF	#000000	##FFFFFF
##515BD5	1.00	5.52	3.81	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FD9

Deuteranopia (green-blind)

#0063D3

Tritanopia (blue-blind)

#00788F

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #515bd5;
/* rgb */ color: rgb(81, 91, 213);
/* oklch */ color: oklch(53.3% 0.185 274.7);

Tailwind

colors: {
  custom: {
    50: '#8f89e3',
    500: '#515bd5',
    950: '#000000',
  },
}

SCSS

$custom: #515bd5;
$custom-light: #8f89e3;
$custom-dark: #000000;

JSON

{
  "hex": "#515bd5",
  "rgb": {
    "r": 81,
    "g": 91,
    "b": 213
  },
  "hsl": {
    "h": 235.455,
    "s": 61.111,
    "l": 57.647
  },
  "oklch": {
    "l": 0.53282,
    "c": 0.18504,
    "h": 274.7
  },
  "luminance": 0.14036
}

Semantic roles & 50–950 ramp

primary

#515BD5

secondary

#DBD7A6

accent

#D844E4

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0B15

muted

#7E7C84

Preview Lab

Preview with #515BD5

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

Preview Lab → · Contrast checker → · Palette generator →