#4F57BF#4F57BF

#4F57BF is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.7% C 0.161 H 275.8°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#4F57BF
RGB	rgb(79, 87, 191)
HSL	hsl(236, 47%, 53%)
HSV	hsv(236, 59%, 75%)
CMYK	cmyk(58.6%, 54.5%, 0%, 25.1%)
CIE-LAB	lab(41.59, 28.02, -55.82)
CIE-LCH	lch(41.59, 62.46, 296.66°)
OKLab	oklab(50.75% 0.0161 -0.16)
OKLCH	oklch(50.75% 0.161 275.8)
XYZ	xyz(16.0336, 12.2391, 50.7976)
Luminance	0.1224 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F57BF #BFB74F

analogous

#4F8FBF #4F57BF #7F4FBF

triadic

#4F57BF #BF4F57 #57BF4F

tetradic

#4F57BF #BF4F8F #BFB74F #4FBF7F

square

#4F57BF #BF4F8F #BFB74F #4FBF7F

split-complementary

#4F57BF #BF7F4F #8FBF4F

monochromatic

#272C6C #383F99 #4F57BF #7C82CF #A9ADE0

Accessibility & contrast

On white

6.09

#4F57BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#4F57BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F57BF

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F57BF	#FFFFFF	#000000	##FFFFFF
##4F57BF	1.00	6.09	3.45	6.09
#FFFFFF	6.09	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1167C3

Deuteranopia (green-blind)

#005EBD

Tritanopia (blue-blind)

#006F82

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #4f57bf;
/* rgb */ color: rgb(79, 87, 191);
/* oklch */ color: oklch(50.7% 0.161 275.8);

Tailwind

colors: {
  custom: {
    50: '#8a86d3',
    500: '#4f57bf',
    950: '#000000',
  },
}

SCSS

$custom: #4f57bf;
$custom-light: #8a86d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4f57bf",
  "rgb": {
    "r": 79,
    "g": 87,
    "b": 191
  },
  "hsl": {
    "h": 235.714,
    "s": 46.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.5075,
    "c": 0.1608,
    "h": 275.8
  },
  "luminance": 0.1224
}

Semantic roles & 50–950 ramp

primary

#4F57BF

secondary

#CDCA9D

accent

#CD51D6

background

#F9F8FD

surface

#F1EFFA

border

#CBCAD3

text

#0D0B14

muted

#7E7C83

Preview Lab

Preview with #4F57BF

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

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