#4E57BB#4E57BB

#4E57BB is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.4% C 0.155 H 275.5°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#4E57BB
RGB	rgb(78, 87, 187)
HSL	hsl(235, 44%, 52%)
HSV	hsv(235, 58%, 73%)
CMYK	cmyk(58.3%, 53.5%, 0%, 26.7%)
CIE-LAB	lab(41.25, 26.49, -54.04)
CIE-LCH	lch(41.25, 60.18, 296.12°)
OKLab	oklab(50.39% 0.0148 -0.1548)
OKLCH	oklch(50.39% 0.155 275.5)
XYZ	xyz(15.5168, 12.0228, 48.5070)
Luminance	0.1202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E57BB #BBB24E

analogous

#4E8EBB #4E57BB #7C4EBB

triadic

#4E57BB #BB4E57 #57BB4E

tetradic

#4E57BB #BB4E8E #BBB24E #4EBB7C

square

#4E57BB #BB4E8E #BBB24E #4EBB7C

split-complementary

#4E57BB #BB7C4E #8EBB4E

monochromatic

#282D67 #394093 #4E57BB #7A81CC #A6ABDD

Accessibility & contrast

On white

6.17

#4E57BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#4E57BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E57BB

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E57BB	#FFFFFF	#000000	##FFFFFF
##4E57BB	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A66BE

Deuteranopia (green-blind)

#005DB9

Tritanopia (blue-blind)

#006E80

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4e57bb;
/* rgb */ color: rgb(78, 87, 187);
/* oklch */ color: oklch(50.4% 0.155 275.5);

Tailwind

colors: {
  custom: {
    50: '#8986d0',
    500: '#4e57bb',
    950: '#000000',
  },
}

SCSS

$custom: #4e57bb;
$custom-light: #8986d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4e57bb",
  "rgb": {
    "r": 78,
    "g": 87,
    "b": 187
  },
  "hsl": {
    "h": 235.046,
    "s": 44.49,
    "l": 51.961
  },
  "oklch": {
    "l": 0.50389,
    "c": 0.15548,
    "h": 275.5
  },
  "luminance": 0.12024
}

Semantic roles & 50–950 ramp

primary

#4E57BB

secondary

#CAC69B

accent

#CA54D4

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4E57BB

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

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