#513EB3#513EB3

#513EB3 is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.6% C 0.177 H 284.3°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#513EB3
RGB	rgb(81, 62, 179)
HSL	hsl(250, 49%, 47%)
HSV	hsv(250, 65%, 70%)
CMYK	cmyk(54.7%, 65.4%, 0%, 29.8%)
CIE-LAB	lab(34.90, 39.86, -59.62)
CIE-LCH	lch(34.90, 71.72, 303.76°)
OKLab	oklab(45.57% 0.0438 -0.1713)
OKLCH	oklch(45.57% 0.177 284.3)
XYZ	xyz(13.2502, 8.4485, 43.5716)
Luminance	0.0845 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.24

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#513EB3 #A0B33E

analogous

#3E65B3 #513EB3 #8C3EB3

triadic

#513EB3 #B3513E #3EB351

tetradic

#513EB3 #B33E65 #A0B33E #3EB38C

square

#513EB3 #B33E65 #A0B33E #3EB38C

split-complementary

#513EB3 #B38C3E #65B33E

monochromatic

#281F58 #3C2E86 #513EB3 #7565CA #9E92D9

Accessibility & contrast

On white

7.81

#513EB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#513EB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #513EB3

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##513EB3	#FFFFFF	#000000	##FFFFFF
##513EB3	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B7

Deuteranopia (green-blind)

#004EB1

Tritanopia (blue-blind)

#265B73

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #513eb3;
/* rgb */ color: rgb(81, 62, 179);
/* oklch */ color: oklch(45.6% 0.177 284.3);

Tailwind

colors: {
  custom: {
    50: '#8b74cb',
    500: '#513eb3',
    950: '#000000',
  },
}

SCSS

$custom: #513eb3;
$custom-light: #8b74cb;
$custom-dark: #000000;

JSON

{
  "hex": "#513eb3",
  "rgb": {
    "r": 81,
    "g": 62,
    "b": 179
  },
  "hsl": {
    "h": 249.744,
    "s": 48.548,
    "l": 47.255
  },
  "oklch": {
    "l": 0.45573,
    "c": 0.17677,
    "h": 284.3
  },
  "luminance": 0.08449
}

Semantic roles & 50–950 ramp

primary

#513EB3

secondary

#BBC588

accent

#D850C2

background

#F9F7FC

surface

#F1EDF9

border

#CBC8D2

text

#0D0813

muted

#7E7B82

Preview Lab

Preview with #513EB3

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

Preview Lab → · Contrast checker → · Palette generator →