#513FB5#513FB5

#513FB5 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.9% C 0.178 H 283.8°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#513FB5
RGB	rgb(81, 63, 181)
HSL	hsl(249, 48%, 48%)
HSV	hsv(249, 65%, 71%)
CMYK	cmyk(55.2%, 65.2%, 0%, 29%)
CIE-LAB	lab(35.28, 39.89, -60.19)
CIE-LCH	lch(35.28, 72.21, 303.54°)
OKLab	oklab(45.9% 0.0426 -0.1729)
OKLCH	oklch(45.9% 0.178 283.8)
XYZ	xyz(13.5088, 8.6397, 44.6629)
Luminance	0.0864 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 0.95

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#513FB5 #A3B53F

analogous

#3F68B5 #513FB5 #8C3FB5

triadic

#513FB5 #B5513F #3FB551

tetradic

#513FB5 #B53F68 #A3B53F #3FB58C

square

#513FB5 #B53F68 #A3B53F #3FB58C

split-complementary

#513FB5 #B58C3F #68B53F

monochromatic

#281F5A #3D2F88 #513FB5 #7667CA #9F94DA

Accessibility & contrast

On white

7.70

#513FB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#513FB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #513FB5

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##513FB5	#FFFFFF	#000000	##FFFFFF
##513FB5	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B9

Deuteranopia (green-blind)

#004FB3

Tritanopia (blue-blind)

#235C74

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #513fb5;
/* rgb */ color: rgb(81, 63, 181);
/* oklch */ color: oklch(45.9% 0.178 283.8);

Tailwind

colors: {
  custom: {
    50: '#8b75cc',
    500: '#513fb5',
    950: '#000000',
  },
}

SCSS

$custom: #513fb5;
$custom-light: #8b75cc;
$custom-dark: #000000;

JSON

{
  "hex": "#513fb5",
  "rgb": {
    "r": 81,
    "g": 63,
    "b": 181
  },
  "hsl": {
    "h": 249.153,
    "s": 48.361,
    "l": 47.843
  },
  "oklch": {
    "l": 0.459,
    "c": 0.17809,
    "h": 283.8
  },
  "luminance": 0.08641
}

Semantic roles & 50–950 ramp

primary

#513FB5

secondary

#BCC58A

accent

#D850C3

background

#F9F7FC

surface

#F1EDF9

border

#CBC8D2

text

#0D0813

muted

#7E7B82

Preview Lab

Preview with #513FB5

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

Preview Lab → · Contrast checker → · Palette generator →