#4C57D8#4C57D8

#4C57D8 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.5% C 0.195 H 273.8°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#4C57D8
RGB	rgb(76, 87, 216)
HSL	hsl(235, 64%, 57%)
HSV	hsv(235, 65%, 85%)
CMYK	cmyk(64.8%, 59.7%, 0%, 15.3%)
CIE-LAB	lab(43.23, 35.94, -67.60)
CIE-LCH	lch(43.23, 76.56, 297.99°)
OKLab	oklab(52.49% 0.013 -0.1947)
OKLCH	oklch(52.49% 0.195 273.8)
XYZ	xyz(18.7792, 13.3091, 66.5317)
Luminance	0.1331 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C57D8 #D8CD4C

analogous

#4C9DD8 #4C57D8 #874CD8

triadic

#4C57D8 #D84C57 #57D84C

tetradic

#4C57D8 #D84C9D #D8CD4C #4CD887

square

#4C57D8 #D84C9D #D8CD4C #4CD887

split-complementary

#4C57D8 #D8874C #9DD84C

monochromatic

#1E278B #2935BE #4C57D8 #7E86E3 #B1B5EE

Accessibility & contrast

On white

5.73

#4C57D8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#4C57D8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C57D8

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C57D8	#FFFFFF	#000000	##FFFFFF
##4C57D8	1.00	5.73	3.66	5.73
#FFFFFF	5.73	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CDC

Deuteranopia (green-blind)

#0060D5

Tritanopia (blue-blind)

#00778F

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #4c57d8;
/* rgb */ color: rgb(76, 87, 216);
/* oklch */ color: oklch(52.5% 0.195 273.8);

Tailwind

colors: {
  custom: {
    50: '#8d86e5',
    500: '#4c57d8',
    950: '#000000',
  },
}

SCSS

$custom: #4c57d8;
$custom-light: #8d86e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4c57d8",
  "rgb": {
    "r": 76,
    "g": 87,
    "b": 216
  },
  "hsl": {
    "h": 235.286,
    "s": 64.22,
    "l": 57.255
  },
  "oklch": {
    "l": 0.52488,
    "c": 0.19516,
    "h": 273.8
  },
  "luminance": 0.13311
}

Semantic roles & 50–950 ramp

primary

#4C57D8

secondary

#DCD8A4

accent

#DA41E7

background

#F9F8FE

surface

#F2EFFC

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #4C57D8

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

Preview Lab → · Contrast checker → · Palette generator →