#4E57B8#4E57B8

#4E57B8 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.2% C 0.151 H 275.5°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#4E57B8
RGB	rgb(78, 87, 184)
HSL	hsl(235, 43%, 51%)
HSV	hsv(235, 58%, 72%)
CMYK	cmyk(57.6%, 52.7%, 0%, 27.8%)
CIE-LAB	lab(41.05, 25.49, -52.61)
CIE-LCH	lch(41.05, 58.46, 295.85°)
OKLab	oklab(50.17% 0.0146 -0.1506)
OKLCH	oklch(50.17% 0.151 275.5)
XYZ	xyz(15.1990, 11.8957, 46.8333)
Luminance	0.1190 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E57B8 #B8AF4E

analogous

#4E8CB8 #4E57B8 #7A4EB8

triadic

#4E57B8 #B84E57 #57B84E

tetradic

#4E57B8 #B84E8C #B8AF4E #4EB87A

square

#4E57B8 #B84E8C #B8AF4E #4EB87A

split-complementary

#4E57B8 #B87A4E #8CB84E

monochromatic

#282D64 #39418F #4E57B8 #7A80CA #A5AADB

Accessibility & contrast

On white

6.21

#4E57B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#4E57B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E57B8

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E57B8	#FFFFFF	#000000	##FFFFFF
##4E57B8	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F65BB

Deuteranopia (green-blind)

#025CB6

Tritanopia (blue-blind)

#096D7F

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4e57b8;
/* rgb */ color: rgb(78, 87, 184);
/* oklch */ color: oklch(50.2% 0.151 275.5);

Tailwind

colors: {
  custom: {
    50: '#8986ce',
    500: '#4e57b8',
    950: '#000000',
  },
}

SCSS

$custom: #4e57b8;
$custom-light: #8986ce;
$custom-dark: #000000;

JSON

{
  "hex": "#4e57b8",
  "rgb": {
    "r": 78,
    "g": 87,
    "b": 184
  },
  "hsl": {
    "h": 234.906,
    "s": 42.742,
    "l": 51.373
  },
  "oklch": {
    "l": 0.50173,
    "c": 0.15127,
    "h": 275.5
  },
  "luminance": 0.11897
}

Semantic roles & 50–950 ramp

primary

#4E57B8

secondary

#C8C49A

accent

#C855D3

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4E57B8

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

Preview Lab → · Contrast checker → · Palette generator →