#4B57D9#4B57D9

#4B57D9 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.5% C 0.197 H 273.5°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#4B57D9
RGB	rgb(75, 87, 217)
HSL	hsl(235, 65%, 57%)
HSV	hsv(235, 65%, 85%)
CMYK	cmyk(65.4%, 59.9%, 0%, 14.9%)
CIE-LAB	lab(43.24, 36.13, -68.15)
CIE-LCH	lch(43.24, 77.13, 297.93°)
OKLab	oklab(52.51% 0.0119 -0.1963)
OKLCH	oklch(52.51% 0.197 273.5)
XYZ	xyz(18.8301, 13.3203, 67.2109)
Luminance	0.1332 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B57D9 #D9CD4B

analogous

#4B9ED9 #4B57D9 #864BD9

triadic

#4B57D9 #D94B57 #57D94B

tetradic

#4B57D9 #D94B9E #D9CD4B #4BD986

square

#4B57D9 #D94B9E #D9CD4B #4BD986

split-complementary

#4B57D9 #D9864B #9ED94B

monochromatic

#1E278C #2835BF #4B57D9 #7E86E4 #B0B5EE

Accessibility & contrast

On white

5.73

#4B57D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#4B57D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B57D9

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B57D9	#FFFFFF	#000000	##FFFFFF
##4B57D9	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)

#006DDD

Deuteranopia (green-blind)

#0060D6

Tritanopia (blue-blind)

#007790

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #4b57d9;
/* rgb */ color: rgb(75, 87, 217);
/* oklch */ color: oklch(52.5% 0.197 273.5);

Tailwind

colors: {
  custom: {
    50: '#8d86e6',
    500: '#4b57d9',
    950: '#000000',
  },
}

SCSS

$custom: #4b57d9;
$custom-light: #8d86e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4b57d9",
  "rgb": {
    "r": 75,
    "g": 87,
    "b": 217
  },
  "hsl": {
    "h": 234.93,
    "s": 65.138,
    "l": 57.255
  },
  "oklch": {
    "l": 0.52509,
    "c": 0.19671,
    "h": 273.5
  },
  "luminance": 0.13322
}

Semantic roles & 50–950 ramp

primary

#4B57D9

secondary

#DDD8A3

accent

#DA40E8

background

#F9F8FE

surface

#F2EFFC

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #4B57D9

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

Preview Lab → · Contrast checker → · Palette generator →