#4B57D8#4B57D8

#4B57D8 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.4% C 0.195 H 273.5°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#4B57D8
RGB	rgb(75, 87, 216)
HSL	hsl(235, 64%, 57%)
HSV	hsv(235, 65%, 85%)
CMYK	cmyk(65.3%, 59.7%, 0%, 15.3%)
CIE-LAB	lab(43.17, 35.79, -67.70)
CIE-LCH	lch(43.17, 76.58, 297.86°)
OKLab	oklab(52.43% 0.012 -0.195)
OKLCH	oklch(52.43% 0.195 273.5)
XYZ	xyz(18.7004, 13.2685, 66.5280)
Luminance	0.1327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B57D8 #D8CC4B

analogous

#4B9DD8 #4B57D8 #864BD8

triadic

#4B57D8 #D84B57 #57D84B

tetradic

#4B57D8 #D84B9D #D8CC4B #4BD886

square

#4B57D8 #D84B9D #D8CC4B #4BD886

split-complementary

#4B57D8 #D8864B #9DD84B

monochromatic

#1E278B #2936BD #4B57D8 #7D86E3 #B0B5EE

Accessibility & contrast

On white

5.75

#4B57D8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#4B57D8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B57D8

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B57D8	#FFFFFF	#000000	##FFFFFF
##4B57D8	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CDC

Deuteranopia (green-blind)

#0060D5

Tritanopia (blue-blind)

#00778F

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #4b57d8;
/* rgb */ color: rgb(75, 87, 216);
/* oklch */ color: oklch(52.4% 0.195 273.5);

Tailwind

colors: {
  custom: {
    50: '#8d86e5',
    500: '#4b57d8',
    950: '#000000',
  },
}

SCSS

$custom: #4b57d8;
$custom-light: #8d86e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4b57d8",
  "rgb": {
    "r": 75,
    "g": 87,
    "b": 216
  },
  "hsl": {
    "h": 234.894,
    "s": 64.384,
    "l": 57.059
  },
  "oklch": {
    "l": 0.52428,
    "c": 0.19541,
    "h": 273.5
  },
  "luminance": 0.1327
}

Semantic roles & 50–950 ramp

primary

#4B57D8

secondary

#DCD7A3

accent

#D940E7

background

#F9F8FE

surface

#F2EFFC

border

#CCCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #4B57D8

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

Preview Lab → · Contrast checker → · Palette generator →