#513EB5#513EB5

#513EB5 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.7% C 0.179 H 284.0°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#513EB5
RGB	rgb(81, 62, 181)
HSL	hsl(250, 49%, 48%)
HSV	hsv(250, 66%, 71%)
CMYK	cmyk(55.2%, 65.7%, 0%, 29%)
CIE-LAB	lab(35.06, 40.48, -60.54)
CIE-LCH	lch(35.06, 72.83, 303.77°)
OKLab	oklab(45.74% 0.0435 -0.174)
OKLCH	oklch(45.74% 0.179 284)
XYZ	xyz(13.4539, 8.5300, 44.6446)
Luminance	0.0853 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.21

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#513EB5 #A2B53E

analogous

#3E66B5 #513EB5 #8D3EB5

triadic

#513EB5 #B5513E #3EB551

tetradic

#513EB5 #B53E66 #A2B53E #3EB58D

square

#513EB5 #B53E66 #A2B53E #3EB58D

split-complementary

#513EB5 #B58D3E #66B53E

monochromatic

#281F5A #3D2E87 #513EB5 #7666CA #9F93DA

Accessibility & contrast

On white

7.76

#513EB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#513EB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #513EB5

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##513EB5	#FFFFFF	#000000	##FFFFFF
##513EB5	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B9

Deuteranopia (green-blind)

#004FB3

Tritanopia (blue-blind)

#235C74

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #513eb5;
/* rgb */ color: rgb(81, 62, 181);
/* oklch */ color: oklch(45.7% 0.179 284.0);

Tailwind

colors: {
  custom: {
    50: '#8b74cc',
    500: '#513eb5',
    950: '#000000',
  },
}

SCSS

$custom: #513eb5;
$custom-light: #8b74cc;
$custom-dark: #000000;

JSON

{
  "hex": "#513eb5",
  "rgb": {
    "r": 81,
    "g": 62,
    "b": 181
  },
  "hsl": {
    "h": 249.58,
    "s": 48.971,
    "l": 47.647
  },
  "oklch": {
    "l": 0.45742,
    "c": 0.17933,
    "h": 284
  },
  "luminance": 0.08531
}

Semantic roles & 50–950 ramp

primary

#513EB5

secondary

#BCC589

accent

#D94FC3

background

#F9F7FC

surface

#F1EDF9

border

#CBC8D2

text

#0D0813

muted

#7E7B82

Preview Lab

Preview with #513EB5

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

Preview Lab → · Contrast checker → · Palette generator →