#4B57CA#4B57CA

#4B57CA is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.3% C 0.177 H 273.9°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#4B57CA
RGB	rgb(75, 87, 202)
HSL	hsl(234, 55%, 54%)
HSV	hsv(234, 63%, 79%)
CMYK	cmyk(62.9%, 56.9%, 0%, 20.8%)
CIE-LAB	lab(42.12, 31.03, -61.36)
CIE-LCH	lch(42.12, 68.76, 296.83°)
OKLab	oklab(51.32% 0.012 -0.1764)
OKLCH	oklch(51.32% 0.177 273.9)
XYZ	xyz(16.9670, 12.5751, 57.3988)
Luminance	0.1258 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B57CA #CABE4B

analogous

#4B96CA #4B57CA #7F4BCA

triadic

#4B57CA #CA4B57 #57CA4B

tetradic

#4B57CA #CA4B96 #CABE4B #4BCA7F

square

#4B57CA #CA4B96 #CABE4B #4BCA7F

split-complementary

#4B57CA #CA7F4B #96CA4B

monochromatic

#232B77 #313CA7 #4B57CA #7A83D8 #AAAFE6

Accessibility & contrast

On white

5.97

#4B57CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#4B57CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B57CA

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B57CA	#FFFFFF	#000000	##FFFFFF
##4B57CA	1.00	5.97	3.52	5.97
#FFFFFF	5.97	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069CE

Deuteranopia (green-blind)

#005EC8

Tritanopia (blue-blind)

#007388

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4b57ca;
/* rgb */ color: rgb(75, 87, 202);
/* oklch */ color: oklch(51.3% 0.177 273.9);

Tailwind

colors: {
  custom: {
    50: '#8a86db',
    500: '#4b57ca',
    950: '#000000',
  },
}

SCSS

$custom: #4b57ca;
$custom-light: #8a86db;
$custom-dark: #000000;

JSON

{
  "hex": "#4b57ca",
  "rgb": {
    "r": 75,
    "g": 87,
    "b": 202
  },
  "hsl": {
    "h": 234.331,
    "s": 54.506,
    "l": 54.314
  },
  "oklch": {
    "l": 0.5132,
    "c": 0.17682,
    "h": 273.9
  },
  "luminance": 0.12577
}

Semantic roles & 50–950 ramp

primary

#4B57CA

secondary

#D3CE9D

accent

#D04ADE

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4B57CA

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

Preview Lab → · Contrast checker → · Palette generator →