#4F63BC#4F63BC

#4F63BC is a mid, vivid blue. Relative luminance 0.142; OKLCH L 52.9% C 0.141 H 271.3°. Best body text is #FFFFFF at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#4F63BC
RGB	rgb(79, 99, 188)
HSL	hsl(229, 45%, 52%)
HSV	hsv(229, 58%, 74%)
CMYK	cmyk(58%, 47.3%, 0%, 26.3%)
CIE-LAB	lab(44.54, 19.43, -49.33)
CIE-LCH	lch(44.54, 53.02, 291.50°)
OKLab	oklab(52.91% 0.0033 -0.1408)
OKLCH	oklch(52.91% 0.141 271.3)
XYZ	xyz(16.7604, 14.2155, 49.4279)
Luminance	0.1422 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F63BC #BCA84F

analogous

#4F99BC #4F63BC #724FBC

triadic

#4F63BC #BC4F63 #63BC4F

tetradic

#4F63BC #BC4F99 #BCA84F #4FBC72

square

#4F63BC #BC4F99 #BCA84F #4FBC72

split-complementary

#4F63BC #BC724F #99BC4F

monochromatic

#283469 #394A95 #4F63BC #7B8ACD #A8B2DE

Accessibility & contrast

On white

5.46

#4F63BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#4F63BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F63BC

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F63BC	#FFFFFF	#000000	##FFFFFF
##4F63BC	1.00	5.46	3.84	5.46
#FFFFFF	5.46	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386EBF

Deuteranopia (green-blind)

#2865BA

Tritanopia (blue-blind)

#007786

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #4f63bc;
/* rgb */ color: rgb(79, 99, 188);
/* oklch */ color: oklch(52.9% 0.141 271.3);

Tailwind

colors: {
  custom: {
    50: '#898fd1',
    500: '#4f63bc',
    950: '#000000',
  },
}

SCSS

$custom: #4f63bc;
$custom-light: #898fd1;
$custom-dark: #000000;

JSON

{
  "hex": "#4f63bc",
  "rgb": {
    "r": 79,
    "g": 99,
    "b": 188
  },
  "hsl": {
    "h": 228.991,
    "s": 44.856,
    "l": 52.353
  },
  "oklch": {
    "l": 0.52911,
    "c": 0.14082,
    "h": 271.3
  },
  "luminance": 0.14217
}

Semantic roles & 50–950 ramp

primary

#4F63BC

secondary

#CBC29C

accent

#BD53D5

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4F63BC

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

Preview Lab → · Contrast checker → · Palette generator →