#4F63BF#4F63BF

#4F63BF is a mid, vivid blue. Relative luminance 0.143; OKLCH L 53.1% C 0.145 H 271.4°. Best body text is #FFFFFF at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#4F63BF
RGB	rgb(79, 99, 191)
HSL	hsl(229, 47%, 53%)
HSV	hsv(229, 59%, 75%)
CMYK	cmyk(58.6%, 48.2%, 0%, 25.1%)
CIE-LAB	lab(44.73, 20.45, -50.77)
CIE-LCH	lch(44.73, 54.74, 291.93°)
OKLab	oklab(53.11% 0.0037 -0.145)
OKLCH	oklch(53.11% 0.145 271.4)
XYZ	xyz(17.0871, 14.3462, 51.1488)
Luminance	0.1435 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F63BF #BFAB4F

analogous

#4F9BBF #4F63BF #734FBF

triadic

#4F63BF #BF4F63 #63BF4F

tetradic

#4F63BF #BF4F9B #BFAB4F #4FBF73

square

#4F63BF #BF4F9B #BFAB4F #4FBF73

split-complementary

#4F63BF #BF734F #9BBF4F

monochromatic

#27346C #384999 #4F63BF #7C8BCF #A9B3E0

Accessibility & contrast

On white

5.43

#4F63BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#4F63BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F63BF

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F63BF	#FFFFFF	#000000	##FFFFFF
##4F63BF	1.00	5.43	3.87	5.43
#FFFFFF	5.43	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#366FC2

Deuteranopia (green-blind)

#2465BD

Tritanopia (blue-blind)

#007888

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4f63bf;
/* rgb */ color: rgb(79, 99, 191);
/* oklch */ color: oklch(53.1% 0.145 271.4);

Tailwind

colors: {
  custom: {
    50: '#8a8fd3',
    500: '#4f63bf',
    950: '#000000',
  },
}

SCSS

$custom: #4f63bf;
$custom-light: #8a8fd3;
$custom-dark: #000000;

JSON

{
  "hex": "#4f63bf",
  "rgb": {
    "r": 79,
    "g": 99,
    "b": 191
  },
  "hsl": {
    "h": 229.286,
    "s": 46.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.53111,
    "c": 0.14507,
    "h": 271.4
  },
  "luminance": 0.14348
}

Semantic roles & 50–950 ramp

primary

#4F63BF

secondary

#CDC49D

accent

#BF51D6

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0C14

muted

#7D7D83

Preview Lab

Preview with #4F63BF

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

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