#4B57EC#4B57EC

#4B57EC is a mid, highly saturated blue. Relative luminance 0.144; OKLCH L 54.1% C 0.221 H 272.9°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#4B57EC
RGB	rgb(75, 87, 236)
HSL	hsl(236, 81%, 61%)
HSV	hsv(236, 68%, 93%)
CMYK	cmyk(68.2%, 63.1%, 0%, 7.5%)
CIE-LAB	lab(44.75, 42.52, -76.46)
CIE-LCH	lch(44.75, 87.49, 299.08°)
OKLab	oklab(54.09% 0.0111 -0.2207)
OKLCH	oklch(54.09% 0.221 272.9)
XYZ	xyz(21.4451, 14.3663, 80.9834)
Luminance	0.1437 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B57EC #ECE04B

analogous

#4BA7EC #4B57EC #8F4BEC

triadic

#4B57EC #EC4B57 #57EC4B

tetradic

#4B57EC #EC4BA7 #ECE04B #4BEC8F

square

#4B57EC #EC4BA7 #ECE04B #4BEC8F

split-complementary

#4B57EC #EC8F4B #A7EC4B

monochromatic

#121DAB #1827E2 #4B57EC #828BF2 #BABEF8

Accessibility & contrast

On white

5.42

#4B57EC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#4B57EC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B57EC

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B57EC	#FFFFFF	#000000	##FFFFFF
##4B57EC	1.00	5.42	3.87	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071F1

Deuteranopia (green-blind)

#0063E9

Tritanopia (blue-blind)

#007E9A

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4b57ec;
/* rgb */ color: rgb(75, 87, 236);
/* oklch */ color: oklch(54.1% 0.221 272.9);

Tailwind

colors: {
  custom: {
    50: '#9186f3',
    500: '#4b57ec',
    950: '#000000',
  },
}

SCSS

$custom: #4b57ec;
$custom-light: #9186f3;
$custom-dark: #000000;

JSON

{
  "hex": "#4b57ec",
  "rgb": {
    "r": 75,
    "g": 87,
    "b": 236
  },
  "hsl": {
    "h": 235.528,
    "s": 80.905,
    "l": 60.98
  },
  "oklch": {
    "l": 0.54091,
    "c": 0.22102,
    "h": 272.9
  },
  "luminance": 0.14368
}

Semantic roles & 50–950 ramp

primary

#4B57EC

secondary

#E8E3AB

accent

#CD08DD

background

#F9F8FF

surface

#F2EFFE

border

#CCCAD6

text

#0E0B17

muted

#7E7C85

Preview Lab

Preview with #4B57EC

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

Preview Lab → · Contrast checker → · Palette generator →