#4C63CF#4C63CF

#4C63CF is a mid, vivid blue. Relative luminance 0.150; OKLCH L 54.0% C 0.168 H 270.7°. Best body text is #FFFFFF at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#4C63CF
RGB	rgb(76, 99, 207)
HSL	hsl(229, 58%, 55%)
HSV	hsv(229, 63%, 81%)
CMYK	cmyk(63.3%, 52.2%, 0%, 18.8%)
CIE-LAB	lab(45.58, 25.36, -58.62)
CIE-LCH	lch(45.58, 63.88, 293.39°)
OKLab	oklab(54.05% 0.0022 -0.1682)
OKLCH	oklch(54.05% 0.168 270.7)
XYZ	xyz(18.7010, 14.9635, 60.9221)
Luminance	0.1497 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C63CF #CFB84C

analogous

#4CA4CF #4C63CF #774CCF

triadic

#4C63CF #CF4C63 #63CF4C

tetradic

#4C63CF #CF4CA4 #CFB84C #4CCF77

square

#4C63CF #CF4CA4 #CFB84C #4CCF77

split-complementary

#4C63CF #CF774C #A4CF4C

monochromatic

#22327F #2F45AF #4C63CF #7C8DDC #ADB7E9

Accessibility & contrast

On white

5.26

#4C63CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#4C63CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C63CF

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C63CF	#FFFFFF	#000000	##FFFFFF
##4C63CF	1.00	5.26	3.99	5.26
#FFFFFF	5.26	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2072D3

Deuteranopia (green-blind)

#0066CD

Tritanopia (blue-blind)

#007C8F

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #4c63cf;
/* rgb */ color: rgb(76, 99, 207);
/* oklch */ color: oklch(54.0% 0.168 270.7);

Tailwind

colors: {
  custom: {
    50: '#8b8fde',
    500: '#4c63cf',
    950: '#000000',
  },
}

SCSS

$custom: #4c63cf;
$custom-light: #8b8fde;
$custom-dark: #000000;

JSON

{
  "hex": "#4c63cf",
  "rgb": {
    "r": 76,
    "g": 99,
    "b": 207
  },
  "hsl": {
    "h": 229.466,
    "s": 57.709,
    "l": 55.49
  },
  "oklch": {
    "l": 0.54046,
    "c": 0.16819,
    "h": 270.7
  },
  "luminance": 0.14965
}

Semantic roles & 50–950 ramp

primary

#4C63CF

secondary

#D7CDA0

accent

#C647E1

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4C63CF

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

Preview Lab → · Contrast checker → · Palette generator →