#4B57AC#4B57AC

#4B57AC is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.1% C 0.135 H 274.3°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#4B57AC
RGB	rgb(75, 87, 172)
HSL	hsl(233, 39%, 48%)
HSV	hsv(233, 56%, 67%)
CMYK	cmyk(56.4%, 49.4%, 0%, 32.5%)
CIE-LAB	lab(40.06, 20.84, -47.14)
CIE-LCH	lch(40.06, 51.55, 293.85°)
OKLab	oklab(49.13% 0.0101 -0.1346)
OKLCH	oklch(49.13% 0.135 274.3)
XYZ	xyz(13.7538, 11.2898, 40.4761)
Luminance	0.1129 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B57AC #ACA04B

analogous

#4B87AC #4B57AC #6F4BAC

triadic

#4B57AC #AC4B57 #57AC4B

tetradic

#4B57AC #AC4B87 #ACA04B #4BAC6F

square

#4B57AC #AC4B87 #ACA04B #4BAC6F

split-complementary

#4B57AC #AC6F4B #87AC4B

monochromatic

#262C57 #384181 #4B57AC #727CC2 #9DA4D4

Accessibility & contrast

On white

6.45

#4B57AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#4B57AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B57AC

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B57AC	#FFFFFF	#000000	##FFFFFF
##4B57AC	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D63AF

Deuteranopia (green-blind)

#1F5AAA

Tritanopia (blue-blind)

#156A79

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #4b57ac;
/* rgb */ color: rgb(75, 87, 172);
/* oklch */ color: oklch(49.1% 0.135 274.3);

Tailwind

colors: {
  custom: {
    50: '#8586c5',
    500: '#4b57ac',
    950: '#000000',
  },
}

SCSS

$custom: #4b57ac;
$custom-light: #8586c5;
$custom-dark: #000000;

JSON

{
  "hex": "#4b57ac",
  "rgb": {
    "r": 75,
    "g": 87,
    "b": 172
  },
  "hsl": {
    "h": 232.577,
    "s": 39.271,
    "l": 48.431
  },
  "oklch": {
    "l": 0.49126,
    "c": 0.13495,
    "h": 274.3
  },
  "luminance": 0.11291
}

Semantic roles & 50–950 ramp

primary

#4B57AC

secondary

#C1BB92

accent

#C159CF

background

#F8F8FC

surface

#F0EFF8

border

#CBCAD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #4B57AC

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

Preview Lab → · Contrast checker → · Palette generator →