#4F57D7#4F57D7

#4F57D7 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.6% C 0.193 H 274.9°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#4F57D7
RGB	rgb(79, 87, 215)
HSL	hsl(236, 63%, 58%)
HSV	hsv(236, 63%, 84%)
CMYK	cmyk(63.3%, 59.5%, 0%, 15.7%)
CIE-LAB	lab(43.34, 36.06, -66.84)
CIE-LCH	lch(43.34, 75.95, 298.34°)
OKLab	oklab(52.6% 0.0164 -0.1924)
OKLCH	oklch(52.6% 0.193 274.9)
XYZ	xyz(18.8944, 13.3834, 65.8644)
Luminance	0.1338 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F57D7 #D7CF4F

analogous

#4F9BD7 #4F57D7 #8B4FD7

triadic

#4F57D7 #D74F57 #57D74F

tetradic

#4F57D7 #D74F9B #D7CF4F #4FD78B

square

#4F57D7 #D74F9B #D7CF4F #4FD78B

split-complementary

#4F57D7 #D78B4F #9BD74F

monochromatic

#20268C #2B34BE #4F57D7 #8187E2 #B3B6EE

Accessibility & contrast

On white

5.71

#4F57D7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#4F57D7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F57D7

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F57D7	#FFFFFF	#000000	##FFFFFF
##4F57D7	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CDB

Deuteranopia (green-blind)

#0060D4

Tritanopia (blue-blind)

#00778F

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #4f57d7;
/* rgb */ color: rgb(79, 87, 215);
/* oklch */ color: oklch(52.6% 0.193 274.9);

Tailwind

colors: {
  custom: {
    50: '#8e86e4',
    500: '#4f57d7',
    950: '#000000',
  },
}

SCSS

$custom: #4f57d7;
$custom-light: #8e86e4;
$custom-dark: #000000;

JSON

{
  "hex": "#4f57d7",
  "rgb": {
    "r": 79,
    "g": 87,
    "b": 215
  },
  "hsl": {
    "h": 236.471,
    "s": 62.963,
    "l": 57.647
  },
  "oklch": {
    "l": 0.52595,
    "c": 0.19311,
    "h": 274.9
  },
  "luminance": 0.13385
}

Semantic roles & 50–950 ramp

primary

#4F57D7

secondary

#DCD9A6

accent

#DC42E6

background

#F9F8FE

surface

#F2EFFC

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #4F57D7

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

Preview Lab → · Contrast checker → · Palette generator →