#4E63B1#4E63B1

#4E63B1 is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.1% C 0.125 H 270.2°. Best body text is #FFFFFF at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#4E63B1
RGB	rgb(78, 99, 177)
HSL	hsl(227, 39%, 50%)
HSV	hsv(227, 56%, 69%)
CMYK	cmyk(55.9%, 44.1%, 0%, 30.6%)
CIE-LAB	lab(43.82, 15.53, -44.06)
CIE-LCH	lch(43.82, 46.72, 289.41°)
OKLab	oklab(52.14% 0.0005 -0.1253)
OKLCH	oklch(52.14% 0.125 270.2)
XYZ	xyz(15.5369, 13.7166, 43.4153)
Luminance	0.1372 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E63B1 #B19C4E

analogous

#4E94B1 #4E63B1 #6B4EB1

triadic

#4E63B1 #B14E63 #63B14E

tetradic

#4E63B1 #B14E94 #B19C4E #4EB16B

square

#4E63B1 #B14E94 #B19C4E #4EB16B

split-complementary

#4E63B1 #B16B4E #94B14E

monochromatic

#29335C #3B4B87 #4E63B1 #7888C4 #A3AED6

Accessibility & contrast

On white

5.61

#4E63B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#4E63B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E63B1

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E63B1	#FFFFFF	#000000	##FFFFFF
##4E63B1	1.00	5.61	3.74	5.61
#FFFFFF	5.61	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#416CB4

Deuteranopia (green-blind)

#3563AF

Tritanopia (blue-blind)

#157481

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4e63b1;
/* rgb */ color: rgb(78, 99, 177);
/* oklch */ color: oklch(52.1% 0.125 270.2);

Tailwind

colors: {
  custom: {
    50: '#878fc9',
    500: '#4e63b1',
    950: '#000000',
  },
}

SCSS

$custom: #4e63b1;
$custom-light: #878fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#4e63b1",
  "rgb": {
    "r": 78,
    "g": 99,
    "b": 177
  },
  "hsl": {
    "h": 227.273,
    "s": 38.824,
    "l": 50
  },
  "oklch": {
    "l": 0.52136,
    "c": 0.12533,
    "h": 270.2
  },
  "luminance": 0.13718
}

Semantic roles & 50–950 ramp

primary

#4E63B1

secondary

#C4BA97

accent

#B659CF

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #4E63B1

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

Preview Lab → · Contrast checker → · Palette generator →