#4F50BB#4F50BB

#4F50BB is a mid, vivid blue. Relative luminance 0.110; OKLCH L 49.1% C 0.165 H 278.1°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#4F50BB
RGB	rgb(79, 80, 187)
HSL	hsl(239, 44%, 52%)
HSV	hsv(239, 58%, 73%)
CMYK	cmyk(57.8%, 57.2%, 0%, 26.7%)
CIE-LAB	lab(39.56, 31.09, -56.78)
CIE-LCH	lch(39.56, 64.73, 298.70°)
OKLab	oklab(49.14% 0.0231 -0.1629)
OKLCH	oklch(49.14% 0.165 278.1)
XYZ	xyz(15.0599, 10.9864, 48.3311)
Luminance	0.1099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F50BB #BBBA4F

analogous

#4F86BB #4F50BB #844FBB

triadic

#4F50BB #BB4F50 #50BB4F

tetradic

#4F50BB #BB4F86 #BBBA4F #4FBB84

square

#4F50BB #BB4F86 #BBBA4F #4FBB84

split-complementary

#4F50BB #BB844F #86BB4F

monochromatic

#282968 #393A94 #4F50BB #7B7CCC #A7A8DD

Accessibility & contrast

On white

6.57

#4F50BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#4F50BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F50BB

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F50BB	#FFFFFF	#000000	##FFFFFF
##4F50BB	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BF

Deuteranopia (green-blind)

#0059B9

Tritanopia (blue-blind)

#0A697D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4f50bb;
/* rgb */ color: rgb(79, 80, 187);
/* oklch */ color: oklch(49.1% 0.165 278.1);

Tailwind

colors: {
  custom: {
    50: '#8a81d0',
    500: '#4f50bb',
    950: '#000000',
  },
}

SCSS

$custom: #4f50bb;
$custom-light: #8a81d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f50bb",
  "rgb": {
    "r": 79,
    "g": 80,
    "b": 187
  },
  "hsl": {
    "h": 239.444,
    "s": 44.262,
    "l": 52.157
  },
  "oklch": {
    "l": 0.49143,
    "c": 0.1645,
    "h": 278.1
  },
  "luminance": 0.10987
}

Semantic roles & 50–950 ramp

primary

#4F50BB

secondary

#CACA9B

accent

#D354D4

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0D0A14

muted

#7D7C82

Preview Lab

Preview with #4F50BB

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

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