#4B57CD#4B57CD

#4B57CD is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.6% C 0.181 H 273.8°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#4B57CD
RGB	rgb(75, 87, 205)
HSL	hsl(234, 57%, 55%)
HSV	hsv(234, 63%, 80%)
CMYK	cmyk(63.4%, 57.6%, 0%, 19.6%)
CIE-LAB	lab(42.34, 32.05, -62.74)
CIE-LCH	lch(42.34, 70.45, 297.06°)
OKLab	oklab(51.55% 0.012 -0.1804)
OKLCH	oklch(51.55% 0.181 273.8)
XYZ	xyz(17.3256, 12.7186, 59.2877)
Luminance	0.1272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B57CD #CDC14B

analogous

#4B98CD #4B57CD #804BCD

triadic

#4B57CD #CD4B57 #57CD4B

tetradic

#4B57CD #CD4B98 #CDC14B #4BCD80

square

#4B57CD #CD4B98 #CDC14B #4BCD80

split-complementary

#4B57CD #CD804B #98CD4B

monochromatic

#222A7B #303BAB #4B57CD #7B84DA #ABB0E8

Accessibility & contrast

On white

5.93

#4B57CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#4B57CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B57CD

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B57CD	#FFFFFF	#000000	##FFFFFF
##4B57CD	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD1

Deuteranopia (green-blind)

#005ECB

Tritanopia (blue-blind)

#007489

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4b57cd;
/* rgb */ color: rgb(75, 87, 205);
/* oklch */ color: oklch(51.6% 0.181 273.8);

Tailwind

colors: {
  custom: {
    50: '#8b86dd',
    500: '#4b57cd',
    950: '#000000',
  },
}

SCSS

$custom: #4b57cd;
$custom-light: #8b86dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4b57cd",
  "rgb": {
    "r": 75,
    "g": 87,
    "b": 205
  },
  "hsl": {
    "h": 234.462,
    "s": 56.522,
    "l": 54.902
  },
  "oklch": {
    "l": 0.51553,
    "c": 0.18084,
    "h": 273.8
  },
  "luminance": 0.1272
}

Semantic roles & 50–950 ramp

primary

#4B57CD

secondary

#D5D09F

accent

#D248E0

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4B57CD

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

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