#4F57E1#4F57E1

#4F57E1 is a mid, highly saturated blue. Relative luminance 0.139; OKLCH L 53.4% C 0.206 H 274.5°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#4F57E1
RGB	rgb(79, 87, 225)
HSL	hsl(237, 71%, 60%)
HSV	hsv(237, 65%, 88%)
CMYK	cmyk(64.9%, 61.3%, 0%, 11.8%)
CIE-LAB	lab(44.11, 39.39, -71.28)
CIE-LCH	lch(44.11, 81.44, 298.92°)
OKLab	oklab(53.41% 0.016 -0.2054)
OKLCH	oklch(53.41% 0.206 274.5)
XYZ	xyz(20.2188, 13.9131, 72.8396)
Luminance	0.1391 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F57E1 #E1D94F

analogous

#4FA0E1 #4F57E1 #904FE1

triadic

#4F57E1 #E14F57 #57E14F

tetradic

#4F57E1 #E14FA0 #E1D94F #4FE190

square

#4F57E1 #E14FA0 #E1D94F #4FE190

split-complementary

#4F57E1 #E1904F #A0E14F

monochromatic

#1A219B #232DCF #4F57E1 #8389EA #B8BBF3

Accessibility & contrast

On white

5.55

#4F57E1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#4F57E1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F57E1

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F57E1	#FFFFFF	#000000	##FFFFFF
##4F57E1	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FE5

Deuteranopia (green-blind)

#0062DE

Tritanopia (blue-blind)

#007A94

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4f57e1;
/* rgb */ color: rgb(79, 87, 225);
/* oklch */ color: oklch(53.4% 0.206 274.5);

Tailwind

colors: {
  custom: {
    50: '#9086eb',
    500: '#4f57e1',
    950: '#000000',
  },
}

SCSS

$custom: #4f57e1;
$custom-light: #9086eb;
$custom-dark: #000000;

JSON

{
  "hex": "#4f57e1",
  "rgb": {
    "r": 79,
    "g": 87,
    "b": 225
  },
  "hsl": {
    "h": 236.712,
    "s": 70.874,
    "l": 59.608
  },
  "oklch": {
    "l": 0.53406,
    "c": 0.20608,
    "h": 274.5
  },
  "luminance": 0.13915
}

Semantic roles & 50–950 ramp

primary

#4F57E1

secondary

#E2DFAA

accent

#E43AEE

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #4F57E1

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

Preview Lab → · Contrast checker → · Palette generator →