#4F57DC#4F57DC

#4F57DC is a mid, vivid blue. Relative luminance 0.136; OKLCH L 53.0% C 0.200 H 274.7°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#4F57DC
RGB	rgb(79, 87, 220)
HSL	hsl(237, 67%, 59%)
HSV	hsv(237, 64%, 86%)
CMYK	cmyk(64.1%, 60.5%, 0%, 13.7%)
CIE-LAB	lab(43.72, 37.72, -69.07)
CIE-LCH	lch(43.72, 78.70, 298.64°)
OKLab	oklab(53% 0.0162 -0.199)
OKLCH	oklch(53% 0.2 274.7)
XYZ	xyz(19.5467, 13.6443, 69.2998)
Luminance	0.1365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F57DC #DCD44F

analogous

#4F9DDC #4F57DC #8D4FDC

triadic

#4F57DC #DC4F57 #57DC4F

tetradic

#4F57DC #DC4F9D #DCD44F #4FDC8D

square

#4F57DC #DC4F9D #DCD44F #4FDC8D

split-complementary

#4F57DC #DC8D4F #9DDC4F

monochromatic

#1D2493 #2730C6 #4F57DC #8288E6 #B5B8F0

Accessibility & contrast

On white

5.63

#4F57DC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.73

#4F57DC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F57DC

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F57DC	#FFFFFF	#000000	##FFFFFF
##4F57DC	1.00	5.63	3.73	5.63
#FFFFFF	5.63	1.00	21.00	1.00
#000000	3.73	21.00	1.00	21.00
##FFFFFF	5.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EE0

Deuteranopia (green-blind)

#0061D9

Tritanopia (blue-blind)

#007891

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #4f57dc;
/* rgb */ color: rgb(79, 87, 220);
/* oklch */ color: oklch(53.0% 0.200 274.7);

Tailwind

colors: {
  custom: {
    50: '#8f86e8',
    500: '#4f57dc',
    950: '#000000',
  },
}

SCSS

$custom: #4f57dc;
$custom-light: #8f86e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4f57dc",
  "rgb": {
    "r": 79,
    "g": 87,
    "b": 220
  },
  "hsl": {
    "h": 236.596,
    "s": 66.825,
    "l": 58.627
  },
  "oklch": {
    "l": 0.52997,
    "c": 0.19963,
    "h": 274.7
  },
  "luminance": 0.13646
}

Semantic roles & 50–950 ramp

primary

#4F57DC

secondary

#DFDCA8

accent

#E03EEA

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #4F57DC

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

Preview Lab → · Contrast checker → · Palette generator →