#513DB9#513DB9

#513DB9 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.9% C 0.186 H 283.7°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#513DB9
RGB	rgb(81, 61, 185)
HSL	hsl(250, 50%, 48%)
HSV	hsv(250, 67%, 73%)
CMYK	cmyk(56.2%, 67%, 0%, 27.5%)
CIE-LAB	lab(35.18, 42.29, -62.71)
CIE-LCH	lch(35.18, 75.64, 304.00°)
OKLab	oklab(45.93% 0.0439 -0.1803)
OKLCH	oklch(45.93% 0.186 283.7)
XYZ	xyz(13.8164, 8.5888, 46.8193)
Luminance	0.0859 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.56

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#513DB9 #A5B93D

analogous

#3D67B9 #513DB9 #8F3DB9

triadic

#513DB9 #B9513D #3DB951

tetradic

#513DB9 #B93D67 #A5B93D #3DB98F

square

#513DB9 #B93D67 #A5B93D #3DB98F

split-complementary

#513DB9 #B98F3D #67B93D

monochromatic

#291F5D #3D2E8B #513DB9 #7766CD #A095DC

Accessibility & contrast

On white

7.73

#513DB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#513DB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #513DB9

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##513DB9	#FFFFFF	#000000	##FFFFFF
##513DB9	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BD

Deuteranopia (green-blind)

#004FB7

Tritanopia (blue-blind)

#1E5D76

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #513db9;
/* rgb */ color: rgb(81, 61, 185);
/* oklch */ color: oklch(45.9% 0.186 283.7);

Tailwind

colors: {
  custom: {
    50: '#8c74cf',
    500: '#513db9',
    950: '#000000',
  },
}

SCSS

$custom: #513db9;
$custom-light: #8c74cf;
$custom-dark: #000000;

JSON

{
  "hex": "#513db9",
  "rgb": {
    "r": 81,
    "g": 61,
    "b": 185
  },
  "hsl": {
    "h": 249.677,
    "s": 50.407,
    "l": 48.235
  },
  "oklch": {
    "l": 0.45929,
    "c": 0.18562,
    "h": 283.7
  },
  "luminance": 0.0859
}

Semantic roles & 50–950 ramp

primary

#513DB9

secondary

#BDC78B

accent

#DA4EC3

background

#F9F7FC

surface

#F1EDF9

border

#CBC8D2

text

#0D0814

muted

#7E7B82

Preview Lab

Preview with #513DB9

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

Preview Lab → · Contrast checker → · Palette generator →