#4E57EB#4E57EB

#4E57EB is a mid, highly saturated blue. Relative luminance 0.144; OKLCH L 54.2% C 0.219 H 273.8°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#4E57EB
RGB	rgb(78, 87, 235)
HSL	hsl(237, 80%, 61%)
HSV	hsv(237, 67%, 92%)
CMYK	cmyk(66.8%, 63%, 0%, 7.8%)
CIE-LAB	lab(44.85, 42.57, -75.74)
CIE-LCH	lch(44.85, 86.88, 299.34°)
OKLab	oklab(54.18% 0.0144 -0.2185)
OKLCH	oklch(54.18% 0.219 273.8)
XYZ	xyz(21.5405, 14.4323, 80.2317)
Luminance	0.1443 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E57EB #EBE24E

analogous

#4EA5EB #4E57EB #944EEB

triadic

#4E57EB #EB4E57 #57EB4E

tetradic

#4E57EB #EB4EA5 #EBE24E #4EEB94

square

#4E57EB #EB4EA5 #EBE24E #4EEB94

split-complementary

#4E57EB #EB944E #A5EB4E

monochromatic

#131CAB #1A25E2 #4E57EB #858BF1 #BCBFF7

Accessibility & contrast

On white

5.40

#4E57EB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#4E57EB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E57EB

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E57EB	#FFFFFF	#000000	##FFFFFF
##4E57EB	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071F0

Deuteranopia (green-blind)

#0063E8

Tritanopia (blue-blind)

#007D99

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4e57eb;
/* rgb */ color: rgb(78, 87, 235);
/* oklch */ color: oklch(54.2% 0.219 273.8);

Tailwind

colors: {
  custom: {
    50: '#9286f3',
    500: '#4e57eb',
    950: '#000000',
  },
}

SCSS

$custom: #4e57eb;
$custom-light: #9286f3;
$custom-dark: #000000;

JSON

{
  "hex": "#4e57eb",
  "rgb": {
    "r": 78,
    "g": 87,
    "b": 235
  },
  "hsl": {
    "h": 236.561,
    "s": 79.695,
    "l": 61.373
  },
  "oklch": {
    "l": 0.5418,
    "c": 0.21903,
    "h": 273.8
  },
  "luminance": 0.14434
}

Semantic roles & 50–950 ramp

primary

#4E57EB

secondary

#E8E4AD

accent

#D009DC

background

#F9F8FF

surface

#F2EFFE

border

#CCCAD6

text

#0E0B17

muted

#7E7C85

Preview Lab

Preview with #4E57EB

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

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