#513FBB#513FBB

#513FBB is a mid, vivid blue. Relative luminance 0.089; OKLCH L 46.4% C 0.186 H 283.0°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#513FBB
RGB	rgb(81, 63, 187)
HSL	hsl(249, 50%, 49%)
HSV	hsv(249, 66%, 73%)
CMYK	cmyk(56.7%, 66.3%, 0%, 26.7%)
CIE-LAB	lab(35.77, 41.76, -62.92)
CIE-LCH	lch(35.77, 75.52, 303.57°)
OKLab	oklab(46.41% 0.0419 -0.1809)
OKLCH	oklch(46.41% 0.186 283)
XYZ	xyz(14.1377, 8.8913, 47.9753)
Luminance	0.0889 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.28

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#513FBB #A9BB3F

analogous

#3F6BBB #513FBB #8F3FBB

triadic

#513FBB #BB513F #3FBB51

tetradic

#513FBB #BB3F6B #A9BB3F #3FBB8F

square

#513FBB #BB3F6B #A9BB3F #3FBB8F

split-complementary

#513FBB #BB8F3F #6BBB3F

monochromatic

#29205F #3D308D #513FBB #796ACD #A298DC

Accessibility & contrast

On white

7.56

#513FBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#513FBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #513FBB

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##513FBB	#FFFFFF	#000000	##FFFFFF
##513FBB	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BF

Deuteranopia (green-blind)

#0050B9

Tritanopia (blue-blind)

#1B5E77

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #513fbb;
/* rgb */ color: rgb(81, 63, 187);
/* oklch */ color: oklch(46.4% 0.186 283.0);

Tailwind

colors: {
  custom: {
    50: '#8c75d0',
    500: '#513fbb',
    950: '#000000',
  },
}

SCSS

$custom: #513fbb;
$custom-light: #8c75d0;
$custom-dark: #000000;

JSON

{
  "hex": "#513fbb",
  "rgb": {
    "r": 81,
    "g": 63,
    "b": 187
  },
  "hsl": {
    "h": 248.71,
    "s": 49.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.4641,
    "c": 0.18573,
    "h": 283
  },
  "luminance": 0.08892
}

Semantic roles & 50–950 ramp

primary

#513FBB

secondary

#C0C88E

accent

#D94FC5

background

#F9F7FC

surface

#F1EDF9

border

#CBC8D2

text

#0D0814

muted

#7E7B82

Preview Lab

Preview with #513FBB

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

Preview Lab → · Contrast checker → · Palette generator →