#4F54BB#4F54BB

#4F54BB is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.9% C 0.159 H 276.9°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#4F54BB
RGB	rgb(79, 84, 187)
HSL	hsl(237, 44%, 52%)
HSV	hsv(237, 58%, 73%)
CMYK	cmyk(57.8%, 55.1%, 0%, 26.7%)
CIE-LAB	lab(40.56, 28.58, -55.16)
CIE-LCH	lch(40.56, 62.12, 297.39°)
OKLab	oklab(49.89% 0.019 -0.1581)
OKLCH	oklch(49.89% 0.159 276.9)
XYZ	xyz(15.3615, 11.5897, 48.4316)
Luminance	0.1159 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F54BB #BBB64F

analogous

#4F8ABB #4F54BB #804FBB

triadic

#4F54BB #BB4F54 #54BB4F

tetradic

#4F54BB #BB4F8A #BBB64F #4FBB80

square

#4F54BB #BB4F8A #BBB64F #4FBB80

split-complementary

#4F54BB #BB804F #8ABB4F

monochromatic

#282B68 #393D94 #4F54BB #7B7FCC #A7AADD

Accessibility & contrast

On white

6.33

#4F54BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#4F54BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F54BB

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F54BB	#FFFFFF	#000000	##FFFFFF
##4F54BB	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B64BF

Deuteranopia (green-blind)

#005BB9

Tritanopia (blue-blind)

#086C7F

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4f54bb;
/* rgb */ color: rgb(79, 84, 187);
/* oklch */ color: oklch(49.9% 0.159 276.9);

Tailwind

colors: {
  custom: {
    50: '#8a84d0',
    500: '#4f54bb',
    950: '#000000',
  },
}

SCSS

$custom: #4f54bb;
$custom-light: #8a84d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f54bb",
  "rgb": {
    "r": 79,
    "g": 84,
    "b": 187
  },
  "hsl": {
    "h": 237.222,
    "s": 44.262,
    "l": 52.157
  },
  "oklch": {
    "l": 0.49886,
    "c": 0.15922,
    "h": 276.9
  },
  "luminance": 0.11591
}

Semantic roles & 50–950 ramp

primary

#4F54BB

secondary

#CAC89B

accent

#CE54D4

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0D0A14

muted

#7D7C82

Preview Lab

Preview with #4F54BB

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

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