#513FB3#513FB3

#513FB3 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.7% C 0.176 H 284.1°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#513FB3
RGB	rgb(81, 63, 179)
HSL	hsl(249, 48%, 47%)
HSV	hsv(249, 65%, 70%)
CMYK	cmyk(54.7%, 64.8%, 0%, 29.8%)
CIE-LAB	lab(35.12, 39.27, -59.27)
CIE-LCH	lch(35.12, 71.10, 303.53°)
OKLab	oklab(45.73% 0.0428 -0.1702)
OKLCH	oklch(45.73% 0.176 284.1)
XYZ	xyz(13.3051, 8.5583, 43.5899)
Luminance	0.0856 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 0.99

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#513FB3 #A1B33F

analogous

#3F67B3 #513FB3 #8B3FB3

triadic

#513FB3 #B3513F #3FB351

tetradic

#513FB3 #B33F67 #A1B33F #3FB38B

square

#513FB3 #B33F67 #A1B33F #3FB38B

split-complementary

#513FB3 #B38B3F #67B33F

monochromatic

#281F58 #3D2F86 #513FB3 #7566C9 #9E93D9

Accessibility & contrast

On white

7.74

#513FB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#513FB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #513FB3

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##513FB3	#FFFFFF	#000000	##FFFFFF
##513FB3	1.00	7.74	2.71	7.74
#FFFFFF	7.74	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B7

Deuteranopia (green-blind)

#004FB1

Tritanopia (blue-blind)

#255C73

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #513fb3;
/* rgb */ color: rgb(81, 63, 179);
/* oklch */ color: oklch(45.7% 0.176 284.1);

Tailwind

colors: {
  custom: {
    50: '#8b75cb',
    500: '#513fb3',
    950: '#000000',
  },
}

SCSS

$custom: #513fb3;
$custom-light: #8b75cb;
$custom-dark: #000000;

JSON

{
  "hex": "#513fb3",
  "rgb": {
    "r": 81,
    "g": 63,
    "b": 179
  },
  "hsl": {
    "h": 249.31,
    "s": 47.934,
    "l": 47.451
  },
  "oklch": {
    "l": 0.45732,
    "c": 0.17551,
    "h": 284.1
  },
  "luminance": 0.08559
}

Semantic roles & 50–950 ramp

primary

#513FB3

secondary

#BBC489

accent

#D850C3

background

#F9F7FC

surface

#F1EDF9

border

#CBC8D2

text

#0D0813

muted

#7E7B82

Preview Lab

Preview with #513FB3

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

Preview Lab → · Contrast checker → · Palette generator →