#4F57E8#4F57E8

#4F57E8 is a mid, highly saturated blue. Relative luminance 0.143; OKLCH L 54.0% C 0.215 H 274.2°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#4F57E8
RGB	rgb(79, 87, 232)
HSL	hsl(237, 77%, 61%)
HSV	hsv(237, 66%, 91%)
CMYK	cmyk(65.9%, 62.5%, 0%, 9%)
CIE-LAB	lab(44.66, 41.71, -74.34)
CIE-LCH	lch(44.66, 85.24, 299.30°)
OKLab	oklab(53.99% 0.0157 -0.2144)
OKLCH	oklch(53.99% 0.215 274.2)
XYZ	xyz(21.1933, 14.3029, 77.9722)
Luminance	0.1431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F57E8 #E8E04F

analogous

#4FA3E8 #4F57E8 #934FE8

triadic

#4F57E8 #E84F57 #57E84F

tetradic

#4F57E8 #E84FA3 #E8E04F #4FE893

square

#4F57E8 #E84FA3 #E8E04F #4FE893

split-complementary

#4F57E8 #E8934F #A3E84F

monochromatic

#161DA7 #1D27DD #4F57E8 #858BEF #BBBEF6

Accessibility & contrast

On white

5.44

#4F57E8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#4F57E8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F57E8

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F57E8	#FFFFFF	#000000	##FFFFFF
##4F57E8	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071ED

Deuteranopia (green-blind)

#0063E5

Tritanopia (blue-blind)

#007C97

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4f57e8;
/* rgb */ color: rgb(79, 87, 232);
/* oklch */ color: oklch(54.0% 0.215 274.2);

Tailwind

colors: {
  custom: {
    50: '#9286f0',
    500: '#4f57e8',
    950: '#000000',
  },
}

SCSS

$custom: #4f57e8;
$custom-light: #9286f0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f57e8",
  "rgb": {
    "r": 79,
    "g": 87,
    "b": 232
  },
  "hsl": {
    "h": 236.863,
    "s": 76.884,
    "l": 60.98
  },
  "oklch": {
    "l": 0.53987,
    "c": 0.21499,
    "h": 274.2
  },
  "luminance": 0.14305
}

Semantic roles & 50–950 ramp

primary

#4F57E8

secondary

#E6E3AD

accent

#CE0CD9

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0B17

muted

#7E7C85

Preview Lab

Preview with #4F57E8

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

Preview Lab → · Contrast checker → · Palette generator →