#4E57F3#4E57F3

#4E57F3 is a mid, highly saturated blue. Relative luminance 0.149; OKLCH L 54.9% C 0.229 H 273.5°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#4E57F3
RGB	rgb(78, 87, 243)
HSL	hsl(237, 87%, 63%)
HSV	hsv(237, 68%, 95%)
CMYK	cmyk(67.9%, 64.2%, 0%, 4.7%)
CIE-LAB	lab(45.50, 45.22, -79.16)
CIE-LCH	lch(45.50, 91.16, 299.74°)
OKLab	oklab(54.86% 0.0139 -0.2286)
OKLCH	oklch(54.86% 0.229 273.5)
XYZ	xyz(22.7223, 14.9050, 86.4561)
Luminance	0.1491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E57F3 #F3EA4E

analogous

#4EAAF3 #4E57F3 #974EF3

triadic

#4E57F3 #F34E57 #57F34E

tetradic

#4E57F3 #F34EAA #F3EA4E #4EF397

square

#4E57F3 #F34EAA #F3EA4E #4EF397

split-complementary

#4E57F3 #F3974E #AAF34E

monochromatic

#0D16BA #1521EF #4E57F3 #878DF7 #C1C4FB

Accessibility & contrast

On white

5.27

#4E57F3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#4E57F3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E57F3

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E57F3	#FFFFFF	#000000	##FFFFFF
##4E57F3	1.00	5.27	3.98	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073F8

Deuteranopia (green-blind)

#0064F0

Tritanopia (blue-blind)

#00809D

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #4e57f3;
/* rgb */ color: rgb(78, 87, 243);
/* oklch */ color: oklch(54.9% 0.229 273.5);

Tailwind

colors: {
  custom: {
    50: '#9387f8',
    500: '#4e57f3',
    950: '#000000',
  },
}

SCSS

$custom: #4e57f3;
$custom-light: #9387f8;
$custom-dark: #000000;

JSON

{
  "hex": "#4e57f3",
  "rgb": {
    "r": 78,
    "g": 87,
    "b": 243
  },
  "hsl": {
    "h": 236.727,
    "s": 87.302,
    "l": 62.941
  },
  "oklch": {
    "l": 0.54863,
    "c": 0.229,
    "h": 273.5
  },
  "luminance": 0.14907
}

Semantic roles & 50–950 ramp

primary

#4E57F3

secondary

#ECE9B1

accent

#D802E4

background

#FAF8FF

surface

#F3EFFF

border

#CDCAD7

text

#0F0B17

muted

#7F7C85

Preview Lab

Preview with #4E57F3

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

Preview Lab → · Contrast checker → · Palette generator →