#4B63BA#4B63BA

#4B63BA is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.5% C 0.139 H 269.5°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#4B63BA
RGB	rgb(75, 99, 186)
HSL	hsl(227, 45%, 51%)
HSV	hsv(227, 60%, 73%)
CMYK	cmyk(59.7%, 46.8%, 0%, 27.1%)
CIE-LAB	lab(44.18, 17.96, -48.76)
CIE-LCH	lch(44.18, 51.96, 290.22°)
OKLab	oklab(52.54% -0.0011 -0.1392)
OKLCH	oklch(52.54% 0.139 269.5)
XYZ	xyz(16.2234, 13.9634, 48.2851)
Luminance	0.1396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B63BA #BAA24B

analogous

#4B9ABA #4B63BA #6A4BBA

triadic

#4B63BA #BA4B63 #63BA4B

tetradic

#4B63BA #BA4B9A #BAA24B #4BBA6A

square

#4B63BA #BA4B9A #BAA24B #4BBA6A

split-complementary

#4B63BA #BA6A4B #9ABA4B

monochromatic

#263464 #374B90 #4B63BA #7789CB #A3B0DC

Accessibility & contrast

On white

5.54

#4B63BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#4B63BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B63BA

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B63BA	#FFFFFF	#000000	##FFFFFF
##4B63BA	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#396EBD

Deuteranopia (green-blind)

#2864B8

Tritanopia (blue-blind)

#007785

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4b63ba;
/* rgb */ color: rgb(75, 99, 186);
/* oklch */ color: oklch(52.5% 0.139 269.5);

Tailwind

colors: {
  custom: {
    50: '#878fcf',
    500: '#4b63ba',
    950: '#000000',
  },
}

SCSS

$custom: #4b63ba;
$custom-light: #878fcf;
$custom-dark: #000000;

JSON

{
  "hex": "#4b63ba",
  "rgb": {
    "r": 75,
    "g": 99,
    "b": 186
  },
  "hsl": {
    "h": 227.027,
    "s": 44.578,
    "l": 51.176
  },
  "oklch": {
    "l": 0.52535,
    "c": 0.13918,
    "h": 269.5
  },
  "luminance": 0.13965
}

Semantic roles & 50–950 ramp

primary

#4B63BA

secondary

#C9BE98

accent

#B854D4

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4B63BA

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

Preview Lab → · Contrast checker → · Palette generator →