#4B40BB#4B40BB

#4B40BB is a mid, vivid blue. Relative luminance 0.088; OKLCH L 46.1% C 0.185 H 280.3°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#4B40BB
RGB	rgb(75, 64, 187)
HSL	hsl(245, 49%, 49%)
HSV	hsv(245, 66%, 73%)
CMYK	cmyk(59.9%, 65.8%, 0%, 26.7%)
CIE-LAB	lab(35.50, 40.20, -63.40)
CIE-LCH	lch(35.50, 75.07, 302.38°)
OKLab	oklab(46.09% 0.033 -0.1825)
OKLCH	oklch(46.09% 0.185 280.3)
XYZ	xyz(13.7019, 8.7495, 47.9709)
Luminance	0.0875 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.14

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B40BB #B0BB40

analogous

#4073BB #4B40BB #8940BB

triadic

#4B40BB #BB4B40 #40BB4B

tetradic

#4B40BB #BB4073 #B0BB40 #40BB89

square

#4B40BB #BB4073 #B0BB40 #40BB89

split-complementary

#4B40BB #BB8940 #73BB40

monochromatic

#262160 #39308D #4B40BB #746CCD #9F99DC

Accessibility & contrast

On white

7.64

#4B40BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#4B40BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B40BB

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B40BB	#FFFFFF	#000000	##FFFFFF
##4B40BB	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BF

Deuteranopia (green-blind)

#004FB9

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #4b40bb;
/* rgb */ color: rgb(75, 64, 187);
/* oklch */ color: oklch(46.1% 0.185 280.3);

Tailwind

colors: {
  custom: {
    50: '#8976d0',
    500: '#4b40bb',
    950: '#000000',
  },
}

SCSS

$custom: #4b40bb;
$custom-light: #8976d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4b40bb",
  "rgb": {
    "r": 75,
    "g": 64,
    "b": 187
  },
  "hsl": {
    "h": 245.366,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.46086,
    "c": 0.18549,
    "h": 280.3
  },
  "luminance": 0.08751
}

Semantic roles & 50–950 ramp

primary

#4B40BB

secondary

#C3C88F

accent

#D94FCC

background

#F9F7FC

surface

#F1EDF9

border

#CBC8D2

text

#0D0814

muted

#7E7B82

Preview Lab

Preview with #4B40BB

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

Preview Lab → · Contrast checker → · Palette generator →