#4E57B4#4E57B4

#4E57B4 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.9% C 0.146 H 275.6°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#4E57B4
RGB	rgb(78, 87, 180)
HSL	hsl(235, 40%, 51%)
HSV	hsv(235, 57%, 71%)
CMYK	cmyk(56.7%, 51.7%, 0%, 29.4%)
CIE-LAB	lab(40.78, 24.15, -50.69)
CIE-LCH	lch(40.78, 56.15, 295.47°)
OKLab	oklab(49.89% 0.0143 -0.1449)
OKLCH	oklch(49.89% 0.146 275.6)
XYZ	xyz(14.7856, 11.7303, 44.6562)
Luminance	0.1173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E57B4 #B4AB4E

analogous

#4E8AB4 #4E57B4 #784EB4

triadic

#4E57B4 #B44E57 #57B44E

tetradic

#4E57B4 #B44E8A #B4AB4E #4EB478

square

#4E57B4 #B44E8A #B4AB4E #4EB478

split-complementary

#4E57B4 #B4784E #8AB44E

monochromatic

#282D5F #3B428A #4E57B4 #7980C6 #A4A9D8

Accessibility & contrast

On white

6.28

#4E57B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#4E57B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E57B4

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E57B4	#FFFFFF	#000000	##FFFFFF
##4E57B4	1.00	6.28	3.35	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2565B7

Deuteranopia (green-blind)

#125CB2

Tritanopia (blue-blind)

#136C7D

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4e57b4;
/* rgb */ color: rgb(78, 87, 180);
/* oklch */ color: oklch(49.9% 0.146 275.6);

Tailwind

colors: {
  custom: {
    50: '#8886cb',
    500: '#4e57b4',
    950: '#000000',
  },
}

SCSS

$custom: #4e57b4;
$custom-light: #8886cb;
$custom-dark: #000000;

JSON

{
  "hex": "#4e57b4",
  "rgb": {
    "r": 78,
    "g": 87,
    "b": 180
  },
  "hsl": {
    "h": 234.706,
    "s": 40.476,
    "l": 50.588
  },
  "oklch": {
    "l": 0.49888,
    "c": 0.14563,
    "h": 275.6
  },
  "luminance": 0.11731
}

Semantic roles & 50–950 ramp

primary

#4E57B4

secondary

#C6C298

accent

#C657D0

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #4E57B4

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

Preview Lab → · Contrast checker → · Palette generator →