#4D51FF#4D51FF

#4D51FF is a mid, highly saturated blue. Relative luminance 0.147; OKLCH L 54.9% C 0.250 H 273.5°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#4D51FF
RGB	rgb(77, 81, 255)
HSL	hsl(239, 100%, 65%)
HSV	hsv(239, 70%, 100%)
CMYK	cmyk(69.8%, 68.2%, 0%, 0%)
CIE-LAB	lab(45.19, 52.47, -86.38)
CIE-LCH	lch(45.19, 101.06, 301.28°)
OKLab	oklab(54.94% 0.0153 -0.2497)
OKLCH	oklch(54.94% 0.25 273.5)
XYZ	xyz(24.0470, 14.6803, 96.1546)
Luminance	0.1468 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D51FF #FFFB4D

analogous

#4DAAFF #4D51FF #A24DFF

triadic

#4D51FF #FF4D51 #51FF4D

tetradic

#4D51FF #FF4DAA #FFFB4D #4DFFA2

square

#4D51FF #FF4DAA #FFFB4D #4DFFA2

split-complementary

#4D51FF #FFA24D #AAFF4D

monochromatic

#0005D2 #1015FF #4D51FF #8A8DFF #C7C9FF

Accessibility & contrast

On white

5.33

#4D51FF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#4D51FF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D51FF

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D51FF	#FFFFFF	#000000	##FFFFFF
##4D51FF	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073FF

Deuteranopia (green-blind)

#0063FC

Tritanopia (blue-blind)

#0081A2

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #4d51ff;
/* rgb */ color: rgb(77, 81, 255);
/* oklch */ color: oklch(54.9% 0.250 273.5);

Tailwind

colors: {
  custom: {
    50: '#9683ff',
    500: '#4d51ff',
    950: '#000000',
  },
}

SCSS

$custom: #4d51ff;
$custom-light: #9683ff;
$custom-dark: #000000;

JSON

{
  "hex": "#4d51ff",
  "rgb": {
    "r": 77,
    "g": 81,
    "b": 255
  },
  "hsl": {
    "h": 238.652,
    "s": 100,
    "l": 65.098
  },
  "oklch": {
    "l": 0.54938,
    "c": 0.2502,
    "h": 273.5
  },
  "luminance": 0.14683
}

Semantic roles & 50–950 ramp

primary

#4D51FF

secondary

#F2F1B6

accent

#E000E6

background

#FAF8FF

surface

#F4EFFF

border

#CECAD7

text

#0F0B18

muted

#7F7C86

Preview Lab

Preview with #4D51FF

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

Preview Lab → · Contrast checker → · Palette generator →