#4F63CF#4F63CF

#4F63CF is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.2% C 0.167 H 271.8°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#4F63CF
RGB	rgb(79, 99, 207)
HSL	hsl(231, 57%, 56%)
HSV	hsv(231, 62%, 81%)
CMYK	cmyk(61.8%, 52.2%, 0%, 18.8%)
CIE-LAB	lab(45.76, 25.88, -58.34)
CIE-LCH	lch(45.76, 63.82, 293.92°)
OKLab	oklab(54.22% 0.0053 -0.1673)
OKLCH	oklch(54.22% 0.167 271.8)
XYZ	xyz(18.9450, 15.0894, 60.9336)
Luminance	0.1509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F63CF #CFBB4F

analogous

#4FA3CF #4F63CF #7B4FCF

triadic

#4F63CF #CF4F63 #63CF4F

tetradic

#4F63CF #CF4FA3 #CFBB4F #4FCF7B

square

#4F63CF #CF4FA3 #CFBB4F #4FCF7B

split-complementary

#4F63CF #CF7B4F #A3CF4F

monochromatic

#233281 #3044B1 #4F63CF #7F8EDC #AFB8E9

Accessibility & contrast

On white

5.23

#4F63CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#4F63CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F63CF

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F63CF	#FFFFFF	#000000	##FFFFFF
##4F63CF	1.00	5.23	4.02	5.23
#FFFFFF	5.23	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2172D3

Deuteranopia (green-blind)

#0067CD

Tritanopia (blue-blind)

#007C8F

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #4f63cf;
/* rgb */ color: rgb(79, 99, 207);
/* oklch */ color: oklch(54.2% 0.167 271.8);

Tailwind

colors: {
  custom: {
    50: '#8c8fde',
    500: '#4f63cf',
    950: '#000000',
  },
}

SCSS

$custom: #4f63cf;
$custom-light: #8c8fde;
$custom-dark: #000000;

JSON

{
  "hex": "#4f63cf",
  "rgb": {
    "r": 79,
    "g": 99,
    "b": 207
  },
  "hsl": {
    "h": 230.625,
    "s": 57.143,
    "l": 56.078
  },
  "oklch": {
    "l": 0.54222,
    "c": 0.16735,
    "h": 271.8
  },
  "luminance": 0.15091
}

Semantic roles & 50–950 ramp

primary

#4F63CF

secondary

#D7CFA2

accent

#C847E0

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4F63CF

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

Preview Lab → · Contrast checker → · Palette generator →