#4045BB#4045BB

#4045BB is a mid, vivid blue. Relative luminance 0.089; OKLCH L 46.1% C 0.182 H 274.8°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#4045BB
RGB	rgb(64, 69, 187)
HSL	hsl(238, 49%, 49%)
HSV	hsv(238, 66%, 73%)
CMYK	cmyk(65.8%, 63.1%, 0%, 26.7%)
CIE-LAB	lab(35.85, 35.48, -62.84)
CIE-LCH	lch(35.85, 72.17, 299.45°)
OKLab	oklab(46.14% 0.0153 -0.1812)
OKLCH	oklch(46.14% 0.182 274.8)
XYZ	xyz(13.2092, 8.9329, 48.0322)
Luminance	0.0893 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4045BB #BBB640

analogous

#4083BB #4045BB #7940BB

triadic

#4045BB #BB4045 #45BB40

tetradic

#4045BB #BB4083 #BBB640 #40BB79

square

#4045BB #BB4083 #BBB640 #40BB79

split-complementary

#4045BB #BB7940 #83BB40

monochromatic

#212360 #30348D #4045BB #6C70CD #999CDC

Accessibility & contrast

On white

7.54

#4045BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#4045BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4045BB

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4045BB	#FFFFFF	#000000	##FFFFFF
##4045BB	1.00	7.54	2.79	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABF

Deuteranopia (green-blind)

#004FB9

Tritanopia (blue-blind)

#006379

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #4045bb;
/* rgb */ color: rgb(64, 69, 187);
/* oklch */ color: oklch(46.1% 0.182 274.8);

Tailwind

colors: {
  custom: {
    50: '#8379d0',
    500: '#4045bb',
    950: '#000000',
  },
}

SCSS

$custom: #4045bb;
$custom-light: #8379d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4045bb",
  "rgb": {
    "r": 64,
    "g": 69,
    "b": 187
  },
  "hsl": {
    "h": 237.561,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.46143,
    "c": 0.18183,
    "h": 274.8
  },
  "luminance": 0.08934
}

Semantic roles & 50–950 ramp

primary

#4045BB

secondary

#C8C68F

accent

#D34FD9

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #4045BB

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

Preview Lab → · Contrast checker → · Palette generator →