#4D63DB#4D63DB

#4D63DB is a mid, vivid blue. Relative luminance 0.156; OKLCH L 55.0% C 0.184 H 271.2°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#4D63DB
RGB	rgb(77, 99, 219)
HSL	hsl(231, 66%, 58%)
HSV	hsv(231, 65%, 86%)
CMYK	cmyk(64.8%, 54.8%, 0%, 14.1%)
CIE-LAB	lab(46.46, 29.65, -64.05)
CIE-LCH	lch(46.46, 70.58, 294.84°)
OKLab	oklab(54.98% 0.0039 -0.1841)
OKLCH	oklch(54.98% 0.184 271.2)
XYZ	xyz(20.3043, 15.6141, 68.9479)
Luminance	0.1562 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D63DB #DBC54D

analogous

#4DAADB #4D63DB #7E4DDB

triadic

#4D63DB #DB4D63 #63DB4D

tetradic

#4D63DB #DB4DAA #DBC54D #4DDB7E

square

#4D63DB #DB4DAA #DBC54D #4DDB7E

split-complementary

#4D63DB #DB7E4D #AADB4D

monochromatic

#1D2F90 #2740C3 #4D63DB #8090E5 #B3BCF0

Accessibility & contrast

On white

5.09

#4D63DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#4D63DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D63DB

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D63DB	#FFFFFF	#000000	##FFFFFF
##4D63DB	1.00	5.09	4.12	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075DF

Deuteranopia (green-blind)

#0068D9

Tritanopia (blue-blind)

#008095

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #4d63db;
/* rgb */ color: rgb(77, 99, 219);
/* oklch */ color: oklch(55.0% 0.184 271.2);

Tailwind

colors: {
  custom: {
    50: '#8d8fe7',
    500: '#4d63db',
    950: '#000000',
  },
}

SCSS

$custom: #4d63db;
$custom-light: #8d8fe7;
$custom-dark: #000000;

JSON

{
  "hex": "#4d63db",
  "rgb": {
    "r": 77,
    "g": 99,
    "b": 219
  },
  "hsl": {
    "h": 230.704,
    "s": 66.355,
    "l": 58.039
  },
  "oklch": {
    "l": 0.54984,
    "c": 0.18416,
    "h": 271.2
  },
  "luminance": 0.15616
}

Semantic roles & 50–950 ramp

primary

#4D63DB

secondary

#DED5A6

accent

#CF3FE9

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #4D63DB

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

Preview Lab → · Contrast checker → · Palette generator →