#4F53BB#4F53BB

#4F53BB is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.7% C 0.161 H 277.2°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#4F53BB
RGB	rgb(79, 83, 187)
HSL	hsl(238, 44%, 52%)
HSV	hsv(238, 58%, 73%)
CMYK	cmyk(57.8%, 55.6%, 0%, 26.7%)
CIE-LAB	lab(40.30, 29.21, -55.57)
CIE-LCH	lch(40.30, 62.77, 297.73°)
OKLab	oklab(49.7% 0.02 -0.1593)
OKLCH	oklch(49.7% 0.161 277.2)
XYZ	xyz(15.2845, 11.4355, 48.4059)
Luminance	0.1144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F53BB #BBB74F

analogous

#4F89BB #4F53BB #814FBB

triadic

#4F53BB #BB4F53 #53BB4F

tetradic

#4F53BB #BB4F89 #BBB74F #4FBB81

square

#4F53BB #BB4F89 #BBB74F #4FBB81

split-complementary

#4F53BB #BB814F #89BB4F

monochromatic

#282A68 #393C94 #4F53BB #7B7ECC #A7A9DD

Accessibility & contrast

On white

6.39

#4F53BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#4F53BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F53BB

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F53BB	#FFFFFF	#000000	##FFFFFF
##4F53BB	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0464BF

Deuteranopia (green-blind)

#005BB9

Tritanopia (blue-blind)

#096B7F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4f53bb;
/* rgb */ color: rgb(79, 83, 187);
/* oklch */ color: oklch(49.7% 0.161 277.2);

Tailwind

colors: {
  custom: {
    50: '#8a83d0',
    500: '#4f53bb',
    950: '#000000',
  },
}

SCSS

$custom: #4f53bb;
$custom-light: #8a83d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f53bb",
  "rgb": {
    "r": 79,
    "g": 83,
    "b": 187
  },
  "hsl": {
    "h": 237.778,
    "s": 44.262,
    "l": 52.157
  },
  "oklch": {
    "l": 0.49698,
    "c": 0.16054,
    "h": 277.2
  },
  "luminance": 0.11437
}

Semantic roles & 50–950 ramp

primary

#4F53BB

secondary

#CAC99B

accent

#CF54D4

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0D0A14

muted

#7D7C82

Preview Lab

Preview with #4F53BB

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

Preview Lab → · Contrast checker → · Palette generator →