#4F63B2#4F63B2

#4F63B2 is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.3% C 0.126 H 270.8°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#4F63B2
RGB	rgb(79, 99, 178)
HSL	hsl(228, 39%, 50%)
HSV	hsv(228, 56%, 70%)
CMYK	cmyk(55.6%, 44.4%, 0%, 30.2%)
CIE-LAB	lab(43.94, 16.08, -44.45)
CIE-LCH	lch(43.94, 47.27, 289.88°)
OKLab	oklab(52.26% 0.0018 -0.1264)
OKLCH	oklch(52.26% 0.126 270.8)
XYZ	xyz(15.7195, 13.7992, 43.9460)
Luminance	0.1380 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F63B2 #B29E4F

analogous

#4F94B2 #4F63B2 #6D4FB2

triadic

#4F63B2 #B24F63 #63B24F

tetradic

#4F63B2 #B24F94 #B29E4F #4FB26D

square

#4F63B2 #B24F94 #B29E4F #4FB26D

split-complementary

#4F63B2 #B26D4F #94B24F

monochromatic

#29345E #3C4B88 #4F63B2 #7A89C5 #A4AED7

Accessibility & contrast

On white

5.59

#4F63B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#4F63B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F63B2

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F63B2	#FFFFFF	#000000	##FFFFFF
##4F63B2	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#406CB5

Deuteranopia (green-blind)

#3464B0

Tritanopia (blue-blind)

#187482

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4f63b2;
/* rgb */ color: rgb(79, 99, 178);
/* oklch */ color: oklch(52.3% 0.126 270.8);

Tailwind

colors: {
  custom: {
    50: '#888fc9',
    500: '#4f63b2',
    950: '#000000',
  },
}

SCSS

$custom: #4f63b2;
$custom-light: #888fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#4f63b2",
  "rgb": {
    "r": 79,
    "g": 99,
    "b": 178
  },
  "hsl": {
    "h": 227.879,
    "s": 39.13,
    "l": 50.392
  },
  "oklch": {
    "l": 0.52263,
    "c": 0.12646,
    "h": 270.8
  },
  "luminance": 0.138
}

Semantic roles & 50–950 ramp

primary

#4F63B2

secondary

#C4BC98

accent

#B759CF

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #4F63B2

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

Preview Lab → · Contrast checker → · Palette generator →