#513DB8#513DB8

#513DB8 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.8% C 0.184 H 283.8°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#513DB8
RGB	rgb(81, 61, 184)
HSL	hsl(250, 50%, 48%)
HSV	hsv(250, 67%, 72%)
CMYK	cmyk(56%, 66.8%, 0%, 27.8%)
CIE-LAB	lab(35.10, 41.99, -62.26)
CIE-LCH	lch(35.10, 75.10, 303.99°)
OKLab	oklab(45.84% 0.0441 -0.179)
OKLCH	oklch(45.84% 0.184 283.8)
XYZ	xyz(13.7112, 8.5467, 46.2653)
Luminance	0.0855 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.52

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#513DB8 #A4B83D

analogous

#3D66B8 #513DB8 #8E3DB8

triadic

#513DB8 #B8513D #3DB851

tetradic

#513DB8 #B83D66 #A4B83D #3DB88E

square

#513DB8 #B83D66 #A4B83D #3DB88E

split-complementary

#513DB8 #B88E3D #66B83D

monochromatic

#291F5C #3D2E8A #513DB8 #7766CC #A094DB

Accessibility & contrast

On white

7.75

#513DB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#513DB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #513DB8

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##513DB8	#FFFFFF	#000000	##FFFFFF
##513DB8	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056BC

Deuteranopia (green-blind)

#004EB6

Tritanopia (blue-blind)

#1F5C75

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #513db8;
/* rgb */ color: rgb(81, 61, 184);
/* oklch */ color: oklch(45.8% 0.184 283.8);

Tailwind

colors: {
  custom: {
    50: '#8c74ce',
    500: '#513db8',
    950: '#000000',
  },
}

SCSS

$custom: #513db8;
$custom-light: #8c74ce;
$custom-dark: #000000;

JSON

{
  "hex": "#513db8",
  "rgb": {
    "r": 81,
    "g": 61,
    "b": 184
  },
  "hsl": {
    "h": 249.756,
    "s": 50.204,
    "l": 48.039
  },
  "oklch": {
    "l": 0.45843,
    "c": 0.18436,
    "h": 283.8
  },
  "luminance": 0.08548
}

Semantic roles & 50–950 ramp

primary

#513DB8

secondary

#BDC78A

accent

#DA4EC3

background

#F9F7FC

surface

#F1EDF9

border

#CBC8D2

text

#0D0814

muted

#7E7B82

Preview Lab

Preview with #513DB8

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

Preview Lab → · Contrast checker → · Palette generator →