#4E63B7#4E63B7

#4E63B7 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.5% C 0.134 H 270.6°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#4E63B7
RGB	rgb(78, 99, 183)
HSL	hsl(228, 42%, 51%)
HSV	hsv(228, 57%, 72%)
CMYK	cmyk(57.4%, 45.9%, 0%, 28.2%)
CIE-LAB	lab(44.18, 17.54, -47.00)
CIE-LCH	lch(44.18, 50.17, 290.47°)
OKLab	oklab(52.52% 0.0015 -0.134)
OKLCH	oklch(52.52% 0.134 270.6)
XYZ	xyz(16.1481, 13.9611, 46.6344)
Luminance	0.1396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E63B7 #B7A24E

analogous

#4E97B7 #4E63B7 #6D4EB7

triadic

#4E63B7 #B74E63 #63B74E

tetradic

#4E63B7 #B74E97 #B7A24E #4EB76D

square

#4E63B7 #B74E97 #B7A24E #4EB76D

split-complementary

#4E63B7 #B76D4E #97B74E

monochromatic

#283463 #3A4B8E #4E63B7 #7A89C9 #A5B0DA

Accessibility & contrast

On white

5.54

#4E63B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#4E63B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E63B7

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E63B7	#FFFFFF	#000000	##FFFFFF
##4E63B7	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D6DBA

Deuteranopia (green-blind)

#2E64B5

Tritanopia (blue-blind)

#057684

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4e63b7;
/* rgb */ color: rgb(78, 99, 183);
/* oklch */ color: oklch(52.5% 0.134 270.6);

Tailwind

colors: {
  custom: {
    50: '#888fcd',
    500: '#4e63b7',
    950: '#000000',
  },
}

SCSS

$custom: #4e63b7;
$custom-light: #888fcd;
$custom-dark: #000000;

JSON

{
  "hex": "#4e63b7",
  "rgb": {
    "r": 78,
    "g": 99,
    "b": 183
  },
  "hsl": {
    "h": 228,
    "s": 42.169,
    "l": 51.176
  },
  "oklch": {
    "l": 0.52521,
    "c": 0.13398,
    "h": 270.6
  },
  "luminance": 0.13962
}

Semantic roles & 50–950 ramp

primary

#4E63B7

secondary

#C8BE99

accent

#B956D2

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C13

muted

#7D7D82

Preview Lab

Preview with #4E63B7

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

Preview Lab → · Contrast checker → · Palette generator →