#4C63BA#4C63BA

#4C63BA is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.6% C 0.139 H 270.0°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#4C63BA
RGB	rgb(76, 99, 186)
HSL	hsl(227, 44%, 51%)
HSV	hsv(227, 59%, 73%)
CMYK	cmyk(59.1%, 46.8%, 0%, 27.1%)
CIE-LAB	lab(44.24, 18.16, -48.66)
CIE-LCH	lch(44.24, 51.94, 290.46°)
OKLab	oklab(52.6% -0.0001 -0.1389)
OKLCH	oklch(52.6% 0.139 270)
XYZ	xyz(16.3023, 14.0041, 48.2888)
Luminance	0.1401 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C63BA #BAA34C

analogous

#4C9ABA #4C63BA #6C4CBA

triadic

#4C63BA #BA4C63 #63BA4C

tetradic

#4C63BA #BA4C9A #BAA34C #4CBA6C

square

#4C63BA #BA4C9A #BAA34C #4CBA6C

split-complementary

#4C63BA #BA6C4C #9ABA4C

monochromatic

#273465 #384A91 #4C63BA #7889CB #A4B0DC

Accessibility & contrast

On white

5.52

#4C63BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#4C63BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C63BA

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C63BA	#FFFFFF	#000000	##FFFFFF
##4C63BA	1.00	5.52	3.80	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A6EBD

Deuteranopia (green-blind)

#2964B8

Tritanopia (blue-blind)

#007785

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #4c63ba;
/* rgb */ color: rgb(76, 99, 186);
/* oklch */ color: oklch(52.6% 0.139 270.0);

Tailwind

colors: {
  custom: {
    50: '#878fcf',
    500: '#4c63ba',
    950: '#000000',
  },
}

SCSS

$custom: #4c63ba;
$custom-light: #878fcf;
$custom-dark: #000000;

JSON

{
  "hex": "#4c63ba",
  "rgb": {
    "r": 76,
    "g": 99,
    "b": 186
  },
  "hsl": {
    "h": 227.455,
    "s": 44.355,
    "l": 51.373
  },
  "oklch": {
    "l": 0.52595,
    "c": 0.13887,
    "h": 270
  },
  "luminance": 0.14005
}

Semantic roles & 50–950 ramp

primary

#4C63BA

secondary

#C9BF99

accent

#B954D4

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4C63BA

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

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