#4D57BB#4D57BB

#4D57BB is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.3% C 0.156 H 275.0°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#4D57BB
RGB	rgb(77, 87, 187)
HSL	hsl(235, 45%, 52%)
HSV	hsv(235, 59%, 73%)
CMYK	cmyk(58.8%, 53.5%, 0%, 26.7%)
CIE-LAB	lab(41.19, 26.30, -54.15)
CIE-LCH	lch(41.19, 60.20, 295.91°)
OKLab	oklab(50.32% 0.0136 -0.1551)
OKLCH	oklch(50.32% 0.156 275)
XYZ	xyz(15.4355, 11.9809, 48.5032)
Luminance	0.1198 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D57BB #BBB14D

analogous

#4D8EBB #4D57BB #7A4DBB

triadic

#4D57BB #BB4D57 #57BB4D

tetradic

#4D57BB #BB4D8E #BBB14D #4DBB7A

square

#4D57BB #BB4D8E #BBB14D #4DBB7A

split-complementary

#4D57BB #BB7A4D #8EBB4D

monochromatic

#272D66 #384093 #4D57BB #7981CC #A6ABDD

Accessibility & contrast

On white

6.18

#4D57BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#4D57BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D57BB

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D57BB	#FFFFFF	#000000	##FFFFFF
##4D57BB	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1966BE

Deuteranopia (green-blind)

#005DB9

Tritanopia (blue-blind)

#006E80

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4d57bb;
/* rgb */ color: rgb(77, 87, 187);
/* oklch */ color: oklch(50.3% 0.156 275.0);

Tailwind

colors: {
  custom: {
    50: '#8986d0',
    500: '#4d57bb',
    950: '#000000',
  },
}

SCSS

$custom: #4d57bb;
$custom-light: #8986d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4d57bb",
  "rgb": {
    "r": 77,
    "g": 87,
    "b": 187
  },
  "hsl": {
    "h": 234.545,
    "s": 44.715,
    "l": 51.765
  },
  "oklch": {
    "l": 0.50322,
    "c": 0.15573,
    "h": 275
  },
  "luminance": 0.11982
}

Semantic roles & 50–950 ramp

primary

#4D57BB

secondary

#CAC69A

accent

#C953D4

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4D57BB

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

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