#4F63D9#4F63D9

#4F63D9 is a mid, vivid blue. Relative luminance 0.156; OKLCH L 54.9% C 0.181 H 271.9°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#4F63D9
RGB	rgb(79, 99, 217)
HSL	hsl(231, 64%, 58%)
HSV	hsv(231, 64%, 85%)
CMYK	cmyk(63.6%, 54.4%, 0%, 14.9%)
CIE-LAB	lab(46.44, 29.29, -62.95)
CIE-LCH	lch(46.44, 69.43, 294.95°)
OKLab	oklab(54.95% 0.0059 -0.1808)
OKLCH	oklch(54.95% 0.181 271.9)
XYZ	xyz(20.2065, 15.5939, 67.5773)
Luminance	0.1560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F63D9 #D9C54F

analogous

#4FA8D9 #4F63D9 #804FD9

triadic

#4F63D9 #D94F63 #63D94F

tetradic

#4F63D9 #D94FA8 #D9C54F #4FD980

square

#4F63D9 #D94FA8 #D9C54F #4FD980

split-complementary

#4F63D9 #D9804F #A8D94F

monochromatic

#1F2F8F #2A40C1 #4F63D9 #8190E4 #B4BCEF

Accessibility & contrast

On white

5.10

#4F63D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#4F63D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F63D9

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F63D9	#FFFFFF	#000000	##FFFFFF
##4F63D9	1.00	5.10	4.12	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0474DD

Deuteranopia (green-blind)

#0068D7

Tritanopia (blue-blind)

#007F94

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #4f63d9;
/* rgb */ color: rgb(79, 99, 217);
/* oklch */ color: oklch(54.9% 0.181 271.9);

Tailwind

colors: {
  custom: {
    50: '#8e8fe5',
    500: '#4f63d9',
    950: '#000000',
  },
}

SCSS

$custom: #4f63d9;
$custom-light: #8e8fe5;
$custom-dark: #000000;

JSON

{
  "hex": "#4f63d9",
  "rgb": {
    "r": 79,
    "g": 99,
    "b": 217
  },
  "hsl": {
    "h": 231.304,
    "s": 64.486,
    "l": 58.039
  },
  "oklch": {
    "l": 0.5495,
    "c": 0.18093,
    "h": 271.9
  },
  "luminance": 0.15596
}

Semantic roles & 50–950 ramp

primary

#4F63D9

secondary

#DDD5A6

accent

#CF40E7

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #4F63D9

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

Preview Lab → · Contrast checker → · Palette generator →