#4F57D1#4F57D1

#4F57D1 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 52.1% C 0.185 H 275.1°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#4F57D1
RGB	rgb(79, 87, 209)
HSL	hsl(236, 59%, 56%)
HSV	hsv(236, 62%, 82%)
CMYK	cmyk(62.2%, 58.4%, 0%, 18%)
CIE-LAB	lab(42.88, 34.05, -64.14)
CIE-LCH	lch(42.88, 72.61, 297.96°)
OKLab	oklab(52.12% 0.0165 -0.1845)
OKLCH	oklch(52.12% 0.185 275.1)
XYZ	xyz(18.1375, 13.0806, 61.8782)
Luminance	0.1308 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F57D1 #D1C94F

analogous

#4F98D1 #4F57D1 #884FD1

triadic

#4F57D1 #D14F57 #57D14F

tetradic

#4F57D1 #D14F98 #D1C94F #4FD188

square

#4F57D1 #D14F98 #D1C94F #4FD188

split-complementary

#4F57D1 #D1884F #98D14F

monochromatic

#222883 #2F37B4 #4F57D1 #8085DE #B0B4EA

Accessibility & contrast

On white

5.81

#4F57D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#4F57D1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F57D1

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F57D1	#FFFFFF	#000000	##FFFFFF
##4F57D1	1.00	5.81	3.62	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD5

Deuteranopia (green-blind)

#0060CF

Tritanopia (blue-blind)

#00758B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #4f57d1;
/* rgb */ color: rgb(79, 87, 209);
/* oklch */ color: oklch(52.1% 0.185 275.1);

Tailwind

colors: {
  custom: {
    50: '#8d86e0',
    500: '#4f57d1',
    950: '#000000',
  },
}

SCSS

$custom: #4f57d1;
$custom-light: #8d86e0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f57d1",
  "rgb": {
    "r": 79,
    "g": 87,
    "b": 209
  },
  "hsl": {
    "h": 236.308,
    "s": 58.559,
    "l": 56.471
  },
  "oklch": {
    "l": 0.52119,
    "c": 0.18519,
    "h": 275.1
  },
  "luminance": 0.13082
}

Semantic roles & 50–950 ramp

primary

#4F57D1

secondary

#D9D5A3

accent

#D846E2

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4F57D1

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

Preview Lab → · Contrast checker → · Palette generator →