#5163CD#5163CD

#5163CD is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.2% C 0.164 H 272.5°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#5163CD
RGB	rgb(81, 99, 205)
HSL	hsl(231, 55%, 56%)
HSV	hsv(231, 60%, 80%)
CMYK	cmyk(60.5%, 51.7%, 0%, 19.6%)
CIE-LAB	lab(45.74, 25.56, -57.21)
CIE-LCH	lch(45.74, 62.66, 294.07°)
OKLab	oklab(54.2% 0.0072 -0.1639)
OKLCH	oklch(54.2% 0.164 272.5)
XYZ	xyz(18.8710, 15.0793, 59.6619)
Luminance	0.1508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5163CD #CDBB51

analogous

#51A1CD #5163CD #7D51CD

triadic

#5163CD #CD5163 #63CD51

tetradic

#5163CD #CD51A1 #CDBB51 #51CD7D

square

#5163CD #CD51A1 #CDBB51 #51CD7D

split-complementary

#5163CD #CD7D51 #A1CD51

monochromatic

#25327F #3244AF #5163CD #818EDB #B0B8E8

Accessibility & contrast

On white

5.23

#5163CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#5163CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5163CD

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5163CD	#FFFFFF	#000000	##FFFFFF
##5163CD	1.00	5.23	4.02	5.23
#FFFFFF	5.23	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2572D1

Deuteranopia (green-blind)

#0067CB

Tritanopia (blue-blind)

#007B8E

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #5163cd;
/* rgb */ color: rgb(81, 99, 205);
/* oklch */ color: oklch(54.2% 0.164 272.5);

Tailwind

colors: {
  custom: {
    50: '#8d8fdd',
    500: '#5163cd',
    950: '#000000',
  },
}

SCSS

$custom: #5163cd;
$custom-light: #8d8fdd;
$custom-dark: #000000;

JSON

{
  "hex": "#5163cd",
  "rgb": {
    "r": 81,
    "g": 99,
    "b": 205
  },
  "hsl": {
    "h": 231.29,
    "s": 55.357,
    "l": 56.078
  },
  "oklch": {
    "l": 0.542,
    "c": 0.16406,
    "h": 272.5
  },
  "luminance": 0.15081
}

Semantic roles & 50–950 ramp

primary

#5163CD

secondary

#D7CFA3

accent

#C949DF

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #5163CD

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

Preview Lab → · Contrast checker → · Palette generator →