#4F51E3#4F51E3

#4F51E3 is a mid, highly saturated blue. Relative luminance 0.131; OKLCH L 52.6% C 0.216 H 275.5°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#4F51E3
RGB	rgb(79, 81, 227)
HSL	hsl(239, 73%, 60%)
HSV	hsv(239, 65%, 89%)
CMYK	cmyk(65.2%, 64.3%, 0%, 11%)
CIE-LAB	lab(42.90, 43.65, -74.39)
CIE-LCH	lch(42.90, 86.25, 300.40°)
OKLab	oklab(52.57% 0.0205 -0.2146)
OKLCH	oklch(52.57% 0.216 275.5)
XYZ	xyz(20.0275, 13.0914, 74.1296)
Luminance	0.1309 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F51E3 #E3E14F

analogous

#4F9BE3 #4F51E3 #974FE3

triadic

#4F51E3 #E34F51 #51E34F

tetradic

#4F51E3 #E34F9B #E3E14F #4FE397

square

#4F51E3 #E34F9B #E3E14F #4FE397

split-complementary

#4F51E3 #E3974F #9BE34F

monochromatic

#191B9E #2224D3 #4F51E3 #8485EB #B9B9F4

Accessibility & contrast

On white

5.80

#4F51E3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#4F51E3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F51E3

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F51E3	#FFFFFF	#000000	##FFFFFF
##4F51E3	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CE8

Deuteranopia (green-blind)

#005FE0

Tritanopia (blue-blind)

#007793

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #4f51e3;
/* rgb */ color: rgb(79, 81, 227);
/* oklch */ color: oklch(52.6% 0.216 275.5);

Tailwind

colors: {
  custom: {
    50: '#9182ed',
    500: '#4f51e3',
    950: '#000000',
  },
}

SCSS

$custom: #4f51e3;
$custom-light: #9182ed;
$custom-dark: #000000;

JSON

{
  "hex": "#4f51e3",
  "rgb": {
    "r": 79,
    "g": 81,
    "b": 227
  },
  "hsl": {
    "h": 239.189,
    "s": 72.549,
    "l": 60
  },
  "oklch": {
    "l": 0.52572,
    "c": 0.21559,
    "h": 275.5
  },
  "luminance": 0.13093
}

Semantic roles & 50–950 ramp

primary

#4F51E3

secondary

#E3E3AA

accent

#ED39EF

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4F51E3

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

Preview Lab → · Contrast checker → · Palette generator →