#4A57BB#4A57BB

#4A57BB is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.1% C 0.157 H 273.8°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#4A57BB
RGB	rgb(74, 87, 187)
HSL	hsl(233, 45%, 51%)
HSV	hsv(233, 60%, 73%)
CMYK	cmyk(60.4%, 53.5%, 0%, 26.7%)
CIE-LAB	lab(40.99, 25.74, -54.47)
CIE-LCH	lch(40.99, 60.25, 295.29°)
OKLab	oklab(50.13% 0.0103 -0.1562)
OKLCH	oklch(50.13% 0.157 273.8)
XYZ	xyz(15.1989, 11.8589, 48.4921)
Luminance	0.1186 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4A57BB #BBAE4A

analogous

#4A8FBB #4A57BB #754ABB

triadic

#4A57BB #BB4A57 #57BB4A

tetradic

#4A57BB #BB4A8F #BBAE4A #4ABB75

square

#4A57BB #BB4A8F #BBAE4A #4ABB75

split-complementary

#4A57BB #BB754A #8FBB4A

monochromatic

#262D65 #374191 #4A57BB #7680CC #A3AADC

Accessibility & contrast

On white

6.23

#4A57BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#4A57BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4A57BB

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4A57BB	#FFFFFF	#000000	##FFFFFF
##4A57BB	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1866BE

Deuteranopia (green-blind)

#005CB9

Tritanopia (blue-blind)

#006E80

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4a57bb;
/* rgb */ color: rgb(74, 87, 187);
/* oklch */ color: oklch(50.1% 0.157 273.8);

Tailwind

colors: {
  custom: {
    50: '#8786d0',
    500: '#4a57bb',
    950: '#000000',
  },
}

SCSS

$custom: #4a57bb;
$custom-light: #8786d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4a57bb",
  "rgb": {
    "r": 74,
    "g": 87,
    "b": 187
  },
  "hsl": {
    "h": 233.097,
    "s": 45.382,
    "l": 51.176
  },
  "oklch": {
    "l": 0.50125,
    "c": 0.1565,
    "h": 273.8
  },
  "luminance": 0.1186
}

Semantic roles & 50–950 ramp

primary

#4A57BB

secondary

#C9C497

accent

#C653D5

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4A57BB

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

Preview Lab → · Contrast checker → · Palette generator →