#4F40BB#4F40BB

#4F40BB is a mid, vivid blue. Relative luminance 0.089; OKLCH L 46.4% C 0.185 H 282.0°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#4F40BB
RGB	rgb(79, 64, 187)
HSL	hsl(247, 49%, 49%)
HSV	hsv(247, 66%, 73%)
CMYK	cmyk(57.8%, 65.8%, 0%, 26.7%)
CIE-LAB	lab(35.82, 40.84, -62.85)
CIE-LCH	lch(35.82, 74.96, 303.02°)
OKLab	oklab(46.4% 0.0383 -0.1808)
OKLCH	oklch(46.4% 0.185 282)
XYZ	xyz(14.0247, 8.9160, 47.9860)
Luminance	0.0892 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.03

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F40BB #ACBB40

analogous

#406FBB #4F40BB #8D40BB

triadic

#4F40BB #BB4F40 #40BB4F

tetradic

#4F40BB #BB406F #ACBB40 #40BB8D

square

#4F40BB #BB406F #ACBB40 #40BB8D

split-complementary

#4F40BB #BB8D40 #6FBB40

monochromatic

#282160 #3C308D #4F40BB #776CCD #A199DC

Accessibility & contrast

On white

7.54

#4F40BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#4F40BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4F40BB

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F40BB	#FFFFFF	#000000	##FFFFFF
##4F40BB	1.00	7.54	2.78	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BF

Deuteranopia (green-blind)

#0050B9

Tritanopia (blue-blind)

#105F78

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #4f40bb;
/* rgb */ color: rgb(79, 64, 187);
/* oklch */ color: oklch(46.4% 0.185 282.0);

Tailwind

colors: {
  custom: {
    50: '#8b76d0',
    500: '#4f40bb',
    950: '#000000',
  },
}

SCSS

$custom: #4f40bb;
$custom-light: #8b76d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f40bb",
  "rgb": {
    "r": 79,
    "g": 64,
    "b": 187
  },
  "hsl": {
    "h": 247.317,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.46402,
    "c": 0.18482,
    "h": 282
  },
  "luminance": 0.08917
}

Semantic roles & 50–950 ramp

primary

#4F40BB

secondary

#C1C88F

accent

#D94FC8

background

#F9F7FC

surface

#F1EDF9

border

#CBC8D2

text

#0D0814

muted

#7E7B82

Preview Lab

Preview with #4F40BB

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

Preview Lab → · Contrast checker → · Palette generator →