#4F57FF#4F57FF

#4F57FF is a mid, highly saturated blue. Relative luminance 0.157; OKLCH L 56.0% C 0.243 H 273.3°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#4F57FF
RGB	rgb(79, 87, 255)
HSL	hsl(237, 100%, 65%)
HSV	hsv(237, 69%, 100%)
CMYK	cmyk(69%, 65.9%, 0%, 0%)
CIE-LAB	lab(46.57, 49.26, -84.10)
CIE-LCH	lch(46.57, 97.47, 300.36°)
OKLab	oklab(55.97% 0.0139 -0.243)
OKLCH	oklch(55.97% 0.243 273.3)
XYZ	xyz(24.6766, 15.6963, 96.3176)
Luminance	0.1570 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F57FF #FFF74F

analogous

#4FAFFF #4F57FF #9F4FFF

triadic

#4F57FF #FF4F57 #57FF4F

tetradic

#4F57FF #FF4FAF #FFF74F #4FFF9F

square

#4F57FF #FF4FAF #FFF74F #4FFF9F

split-complementary

#4F57FF #FF9F4F #AFFF4F

monochromatic

#000AD4 #121DFF #4F57FF #8C91FF #C9CCFF

Accessibility & contrast

On white

5.07

#4F57FF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#4F57FF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F57FF

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F57FF	#FFFFFF	#000000	##FFFFFF
##4F57FF	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0077FF

Deuteranopia (green-blind)

#0066FC

Tritanopia (blue-blind)

#0084A4

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #4f57ff;
/* rgb */ color: rgb(79, 87, 255);
/* oklch */ color: oklch(56.0% 0.243 273.3);

Tailwind

colors: {
  custom: {
    50: '#9687ff',
    500: '#4f57ff',
    950: '#000000',
  },
}

SCSS

$custom: #4f57ff;
$custom-light: #9687ff;
$custom-dark: #000000;

JSON

{
  "hex": "#4f57ff",
  "rgb": {
    "r": 79,
    "g": 87,
    "b": 255
  },
  "hsl": {
    "h": 237.273,
    "s": 100,
    "l": 65.49
  },
  "oklch": {
    "l": 0.55967,
    "c": 0.24343,
    "h": 273.3
  },
  "luminance": 0.15699
}

Semantic roles & 50–950 ramp

primary

#4F57FF

secondary

#F2F0B7

accent

#DB00E6

background

#FAF8FF

surface

#F4EFFF

border

#CECAD7

text

#0F0B18

muted

#7F7C86

Preview Lab

Preview with #4F57FF

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

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