#4F51DF#4F51DF

#4F51DF is a mid, highly saturated blue. Relative luminance 0.129; OKLCH L 52.2% C 0.211 H 275.7°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#4F51DF
RGB	rgb(79, 81, 223)
HSL	hsl(239, 69%, 59%)
HSV	hsv(239, 65%, 87%)
CMYK	cmyk(64.6%, 63.7%, 0%, 12.5%)
CIE-LAB	lab(42.57, 42.34, -72.65)
CIE-LCH	lch(42.57, 84.09, 300.23°)
OKLab	oklab(52.23% 0.0208 -0.2095)
OKLCH	oklch(52.23% 0.211 275.7)
XYZ	xyz(19.4818, 12.8732, 71.2558)
Luminance	0.1288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F51DF #DFDD4F

analogous

#4F99DF #4F51DF #954FDF

triadic

#4F51DF #DF4F51 #51DF4F

tetradic

#4F51DF #DF4F99 #DFDD4F #4FDF95

square

#4F51DF #DF4F99 #DFDD4F #4FDF95

split-complementary

#4F51DF #DF954F #99DF4F

monochromatic

#1C1D98 #2527CC #4F51DF #8384E8 #B7B7F2

Accessibility & contrast

On white

5.87

#4F51DF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#4F51DF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F51DF

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F51DF	#FFFFFF	#000000	##FFFFFF
##4F51DF	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BE4

Deuteranopia (green-blind)

#005EDC

Tritanopia (blue-blind)

#007591

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4f51df;
/* rgb */ color: rgb(79, 81, 223);
/* oklch */ color: oklch(52.2% 0.211 275.7);

Tailwind

colors: {
  custom: {
    50: '#9082ea',
    500: '#4f51df',
    950: '#000000',
  },
}

SCSS

$custom: #4f51df;
$custom-light: #9082ea;
$custom-dark: #000000;

JSON

{
  "hex": "#4f51df",
  "rgb": {
    "r": 79,
    "g": 81,
    "b": 223
  },
  "hsl": {
    "h": 239.167,
    "s": 69.231,
    "l": 59.216
  },
  "oklch": {
    "l": 0.5223,
    "c": 0.21055,
    "h": 275.7
  },
  "luminance": 0.12875
}

Semantic roles & 50–950 ramp

primary

#4F51DF

secondary

#E1E0A9

accent

#EA3CEC

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4F51DF

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

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