#4C57E0#4C57E0

#4C57E0 is a mid, highly saturated blue. Relative luminance 0.137; OKLCH L 53.1% C 0.206 H 273.6°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#4C57E0
RGB	rgb(76, 87, 224)
HSL	hsl(236, 70%, 59%)
HSV	hsv(236, 66%, 88%)
CMYK	cmyk(66.1%, 61.2%, 0%, 12.2%)
CIE-LAB	lab(43.85, 38.63, -71.15)
CIE-LCH	lch(43.85, 80.96, 298.50°)
OKLab	oklab(53.14% 0.0128 -0.2051)
OKLCH	oklch(53.14% 0.206 273.6)
XYZ	xyz(19.8388, 13.7329, 72.1118)
Luminance	0.1373 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C57E0 #E0D54C

analogous

#4CA1E0 #4C57E0 #8B4CE0

triadic

#4C57E0 #E04C57 #57E04C

tetradic

#4C57E0 #E04CA1 #E0D54C #4CE08B

square

#4C57E0 #E04CA1 #E0D54C #4CE08B

split-complementary

#4C57E0 #E08B4C #A1E04C

monochromatic

#1A2497 #2330CC #4C57E0 #8088E9 #B4B9F2

Accessibility & contrast

On white

5.60

#4C57E0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#4C57E0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C57E0

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C57E0	#FFFFFF	#000000	##FFFFFF
##4C57E0	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EE4

Deuteranopia (green-blind)

#0061DD

Tritanopia (blue-blind)

#007A93

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4c57e0;
/* rgb */ color: rgb(76, 87, 224);
/* oklch */ color: oklch(53.1% 0.206 273.6);

Tailwind

colors: {
  custom: {
    50: '#8f86eb',
    500: '#4c57e0',
    950: '#000000',
  },
}

SCSS

$custom: #4c57e0;
$custom-light: #8f86eb;
$custom-dark: #000000;

JSON

{
  "hex": "#4c57e0",
  "rgb": {
    "r": 76,
    "g": 87,
    "b": 224
  },
  "hsl": {
    "h": 235.541,
    "s": 70.476,
    "l": 58.824
  },
  "oklch": {
    "l": 0.53141,
    "c": 0.20553,
    "h": 273.6
  },
  "luminance": 0.13735
}

Semantic roles & 50–950 ramp

primary

#4C57E0

secondary

#E1DDA7

accent

#E03BED

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #4C57E0

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

Preview Lab → · Contrast checker → · Palette generator →