#4B57BF#4B57BF

#4B57BF is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.5% C 0.162 H 274.1°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#4B57BF
RGB	rgb(75, 87, 191)
HSL	hsl(234, 48%, 52%)
HSV	hsv(234, 61%, 75%)
CMYK	cmyk(60.7%, 54.5%, 0%, 25.1%)
CIE-LAB	lab(41.33, 27.29, -56.25)
CIE-LCH	lch(41.33, 62.52, 295.88°)
OKLab	oklab(50.49% 0.0116 -0.1614)
OKLCH	oklch(50.49% 0.162 274.1)
XYZ	xyz(15.7107, 12.0726, 50.7824)
Luminance	0.1207 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B57BF #BFB34B

analogous

#4B91BF #4B57BF #794BBF

triadic

#4B57BF #BF4B57 #57BF4B

tetradic

#4B57BF #BF4B91 #BFB34B #4BBF79

square

#4B57BF #BF4B91 #BFB34B #4BBF79

split-complementary

#4B57BF #BF794B #91BF4B

monochromatic

#262D6A #364097 #4B57BF #7881CF #A5ABDF

Accessibility & contrast

On white

6.15

#4B57BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#4B57BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B57BF

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B57BF	#FFFFFF	#000000	##FFFFFF
##4B57BF	1.00	6.15	3.41	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E67C3

Deuteranopia (green-blind)

#005DBD

Tritanopia (blue-blind)

#006F82

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4b57bf;
/* rgb */ color: rgb(75, 87, 191);
/* oklch */ color: oklch(50.5% 0.162 274.1);

Tailwind

colors: {
  custom: {
    50: '#8886d3',
    500: '#4b57bf',
    950: '#000000',
  },
}

SCSS

$custom: #4b57bf;
$custom-light: #8886d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4b57bf",
  "rgb": {
    "r": 75,
    "g": 87,
    "b": 191
  },
  "hsl": {
    "h": 233.793,
    "s": 47.541,
    "l": 52.157
  },
  "oklch": {
    "l": 0.50485,
    "c": 0.16179,
    "h": 274.1
  },
  "luminance": 0.12074
}

Semantic roles & 50–950 ramp

primary

#4B57BF

secondary

#CCC79A

accent

#C951D7

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #4B57BF

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

Preview Lab → · Contrast checker → · Palette generator →