#4F57DF#4F57DF

#4F57DF is a mid, highly saturated blue. Relative luminance 0.138; OKLCH L 53.2% C 0.204 H 274.5°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#4F57DF
RGB	rgb(79, 87, 223)
HSL	hsl(237, 69%, 59%)
HSV	hsv(237, 65%, 87%)
CMYK	cmyk(64.6%, 61%, 0%, 12.5%)
CIE-LAB	lab(43.95, 38.72, -70.40)
CIE-LCH	lch(43.95, 80.35, 298.81°)
OKLab	oklab(53.24% 0.0161 -0.2029)
OKLCH	oklch(53.24% 0.204 274.5)
XYZ	xyz(19.9475, 13.8046, 71.4111)
Luminance	0.1381 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F57DF #DFD74F

analogous

#4F9FDF #4F57DF #8F4FDF

triadic

#4F57DF #DF4F57 #57DF4F

tetradic

#4F57DF #DF4F9F #DFD74F #4FDF8F

square

#4F57DF #DF4F9F #DFD74F #4FDF8F

split-complementary

#4F57DF #DF8F4F #9FDF4F

monochromatic

#1C2398 #252ECC #4F57DF #8388E8 #B7BAF2

Accessibility & contrast

On white

5.58

#4F57DF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#4F57DF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F57DF

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F57DF	#FFFFFF	#000000	##FFFFFF
##4F57DF	1.00	5.58	3.76	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EE3

Deuteranopia (green-blind)

#0062DC

Tritanopia (blue-blind)

#007993

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4f57df;
/* rgb */ color: rgb(79, 87, 223);
/* oklch */ color: oklch(53.2% 0.204 274.5);

Tailwind

colors: {
  custom: {
    50: '#9086ea',
    500: '#4f57df',
    950: '#000000',
  },
}

SCSS

$custom: #4f57df;
$custom-light: #9086ea;
$custom-dark: #000000;

JSON

{
  "hex": "#4f57df",
  "rgb": {
    "r": 79,
    "g": 87,
    "b": 223
  },
  "hsl": {
    "h": 236.667,
    "s": 69.231,
    "l": 59.216
  },
  "oklch": {
    "l": 0.53242,
    "c": 0.20351,
    "h": 274.5
  },
  "luminance": 0.13806
}

Semantic roles & 50–950 ramp

primary

#4F57DF

secondary

#E1DEA9

accent

#E23CEC

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #4F57DF

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

Preview Lab → · Contrast checker → · Palette generator →