#4E51FF#4E51FF

#4E51FF is a mid, highly saturated blue. Relative luminance 0.147; OKLCH L 55.0% C 0.250 H 273.8°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#4E51FF
RGB	rgb(78, 81, 255)
HSL	hsl(239, 100%, 65%)
HSV	hsv(239, 69%, 100%)
CMYK	cmyk(69.4%, 68.2%, 0%, 0%)
CIE-LAB	lab(45.25, 52.58, -86.28)
CIE-LCH	lch(45.25, 101.04, 301.36°)
OKLab	oklab(55% 0.0164 -0.2494)
OKLCH	oklch(55% 0.25 273.8)
XYZ	xyz(24.1283, 14.7222, 96.1585)
Luminance	0.1472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E51FF #FFFC4E

analogous

#4EA9FF #4E51FF #A34EFF

triadic

#4E51FF #FF4E51 #51FF4E

tetradic

#4E51FF #FF4EA9 #FFFC4E #4EFFA3

square

#4E51FF #FF4EA9 #FFFC4E #4EFFA3

split-complementary

#4E51FF #FFA34E #A9FF4E

monochromatic

#0004D3 #1115FF #4E51FF #8B8DFF #C8C9FF

Accessibility & contrast

On white

5.32

#4E51FF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#4E51FF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E51FF

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E51FF	#FFFFFF	#000000	##FFFFFF
##4E51FF	1.00	5.32	3.94	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.32	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: #4e51ff;
/* rgb */ color: rgb(78, 81, 255);
/* oklch */ color: oklch(55.0% 0.250 273.8);

Tailwind

colors: {
  custom: {
    50: '#9683ff',
    500: '#4e51ff',
    950: '#000000',
  },
}

SCSS

$custom: #4e51ff;
$custom-light: #9683ff;
$custom-dark: #000000;

JSON

{
  "hex": "#4e51ff",
  "rgb": {
    "r": 78,
    "g": 81,
    "b": 255
  },
  "hsl": {
    "h": 238.983,
    "s": 100,
    "l": 65.294
  },
  "oklch": {
    "l": 0.54996,
    "c": 0.24996,
    "h": 273.8
  },
  "luminance": 0.14725
}

Semantic roles & 50–950 ramp

primary

#4E51FF

secondary

#F2F1B7

accent

#E200E6

background

#FAF8FF

surface

#F4EFFF

border

#CECAD7

text

#0F0B18

muted

#7F7C86

Preview Lab

Preview with #4E51FF

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

Preview Lab → · Contrast checker → · Palette generator →