#4E63B3#4E63B3

#4E63B3 is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.3% C 0.128 H 270.4°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#4E63B3
RGB	rgb(78, 99, 179)
HSL	hsl(228, 40%, 50%)
HSV	hsv(228, 56%, 70%)
CMYK	cmyk(56.4%, 44.7%, 0%, 29.8%)
CIE-LAB	lab(43.94, 16.20, -45.05)
CIE-LCH	lch(43.94, 47.87, 289.78°)
OKLab	oklab(52.26% 0.0009 -0.1282)
OKLCH	oklch(52.26% 0.128 270.4)
XYZ	xyz(15.7377, 13.7969, 44.4728)
Luminance	0.1380 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E63B3 #B39E4E

analogous

#4E95B3 #4E63B3 #6B4EB3

triadic

#4E63B3 #B34E63 #63B34E

tetradic

#4E63B3 #B34E95 #B39E4E #4EB36B

square

#4E63B3 #B34E95 #B39E4E #4EB36B

split-complementary

#4E63B3 #B36B4E #95B34E

monochromatic

#28345E #3B4B89 #4E63B3 #7989C5 #A4AED8

Accessibility & contrast

On white

5.59

#4E63B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#4E63B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E63B3

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E63B3	#FFFFFF	#000000	##FFFFFF
##4E63B3	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)

#406DB6

Deuteranopia (green-blind)

#3364B1

Tritanopia (blue-blind)

#117582

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4e63b3;
/* rgb */ color: rgb(78, 99, 179);
/* oklch */ color: oklch(52.3% 0.128 270.4);

Tailwind

colors: {
  custom: {
    50: '#878fca',
    500: '#4e63b3',
    950: '#000000',
  },
}

SCSS

$custom: #4e63b3;
$custom-light: #878fca;
$custom-dark: #000000;

JSON

{
  "hex": "#4e63b3",
  "rgb": {
    "r": 78,
    "g": 99,
    "b": 179
  },
  "hsl": {
    "h": 227.525,
    "s": 39.921,
    "l": 50.392
  },
  "oklch": {
    "l": 0.52263,
    "c": 0.12822,
    "h": 270.4
  },
  "luminance": 0.13798
}

Semantic roles & 50–950 ramp

primary

#4E63B3

secondary

#C5BC98

accent

#B758D0

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #4E63B3

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

Preview Lab → · Contrast checker → · Palette generator →