#4D51DF#4D51DF

#4D51DF is a mid, highly saturated blue. Relative luminance 0.128; OKLCH L 52.1% C 0.211 H 275.0°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#4D51DF
RGB	rgb(77, 81, 223)
HSL	hsl(238, 70%, 59%)
HSV	hsv(238, 65%, 87%)
CMYK	cmyk(65.5%, 63.7%, 0%, 12.5%)
CIE-LAB	lab(42.44, 42.06, -72.87)
CIE-LCH	lch(42.44, 84.14, 300.00°)
OKLab	oklab(52.1% 0.0185 -0.2102)
OKLCH	oklch(52.1% 0.211 275)
XYZ	xyz(19.3179, 12.7887, 71.2482)
Luminance	0.1279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D51DF #DFDB4D

analogous

#4D9ADF #4D51DF #924DDF

triadic

#4D51DF #DF4D51 #51DF4D

tetradic

#4D51DF #DF4D9A #DFDB4D #4DDF92

square

#4D51DF #DF4D9A #DFDB4D #4DDF92

split-complementary

#4D51DF #DF924D #9ADF4D

monochromatic

#1B1E97 #2429CA #4D51DF #8184E8 #B5B6F2

Accessibility & contrast

On white

5.90

#4D51DF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#4D51DF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D51DF

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D51DF	#FFFFFF	#000000	##FFFFFF
##4D51DF	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BE4

Deuteranopia (green-blind)

#005EDC

Tritanopia (blue-blind)

#007691

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4d51df;
/* rgb */ color: rgb(77, 81, 223);
/* oklch */ color: oklch(52.1% 0.211 275.0);

Tailwind

colors: {
  custom: {
    50: '#8f82ea',
    500: '#4d51df',
    950: '#000000',
  },
}

SCSS

$custom: #4d51df;
$custom-light: #8f82ea;
$custom-dark: #000000;

JSON

{
  "hex": "#4d51df",
  "rgb": {
    "r": 77,
    "g": 81,
    "b": 223
  },
  "hsl": {
    "h": 238.356,
    "s": 69.524,
    "l": 58.824
  },
  "oklch": {
    "l": 0.52102,
    "c": 0.21102,
    "h": 275
  },
  "luminance": 0.1279
}

Semantic roles & 50–950 ramp

primary

#4D51DF

secondary

#E1DFA7

accent

#E73BEC

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4D51DF

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

Preview Lab → · Contrast checker → · Palette generator →