#4B63DB#4B63DB

#4B63DB is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.9% C 0.185 H 270.6°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#4B63DB
RGB	rgb(75, 99, 219)
HSL	hsl(230, 67%, 58%)
HSV	hsv(230, 66%, 86%)
CMYK	cmyk(65.8%, 54.8%, 0%, 14.1%)
CIE-LAB	lab(46.35, 29.34, -64.23)
CIE-LCH	lch(46.35, 70.62, 294.55°)
OKLab	oklab(54.87% 0.0019 -0.1847)
OKLCH	oklch(54.87% 0.185 270.6)
XYZ	xyz(20.1453, 15.5322, 68.9405)
Luminance	0.1553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B63DB #DBC34B

analogous

#4BABDB #4B63DB #7B4BDB

triadic

#4B63DB #DB4B63 #63DB4B

tetradic

#4B63DB #DB4BAB #DBC34B #4BDB7B

square

#4B63DB #DB4BAB #DBC34B #4BDB7B

split-complementary

#4B63DB #DB7B4B #ABDB4B

monochromatic

#1D308F #2741C2 #4B63DB #7E8FE5 #B1BBEF

Accessibility & contrast

On white

5.11

#4B63DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#4B63DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B63DB

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B63DB	#FFFFFF	#000000	##FFFFFF
##4B63DB	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	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: #4b63db;
/* rgb */ color: rgb(75, 99, 219);
/* oklch */ color: oklch(54.9% 0.185 270.6);

Tailwind

colors: {
  custom: {
    50: '#8d8fe7',
    500: '#4b63db',
    950: '#000000',
  },
}

SCSS

$custom: #4b63db;
$custom-light: #8d8fe7;
$custom-dark: #000000;

JSON

{
  "hex": "#4b63db",
  "rgb": {
    "r": 75,
    "g": 99,
    "b": 219
  },
  "hsl": {
    "h": 230,
    "s": 66.667,
    "l": 57.647
  },
  "oklch": {
    "l": 0.54873,
    "c": 0.18471,
    "h": 270.6
  },
  "luminance": 0.15534
}

Semantic roles & 50–950 ramp

primary

#4B63DB

secondary

#DED4A4

accent

#CD3EEA

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #4B63DB

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

Preview Lab → · Contrast checker → · Palette generator →