#4049BB#4049BB

#4049BB is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.9% C 0.177 H 273.9°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#4049BB
RGB	rgb(64, 73, 187)
HSL	hsl(236, 49%, 49%)
HSV	hsv(236, 66%, 73%)
CMYK	cmyk(65.8%, 61%, 0%, 26.7%)
CIE-LAB	lab(36.82, 32.96, -61.27)
CIE-LCH	lch(36.82, 69.57, 298.28°)
OKLab	oklab(46.85% 0.012 -0.1765)
OKLCH	oklch(46.85% 0.177 273.9)
XYZ	xyz(13.4636, 9.4417, 48.1170)
Luminance	0.0944 (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

#4049BB #BBB240

analogous

#4087BB #4049BB #7540BB

triadic

#4049BB #BB4049 #49BB40

tetradic

#4049BB #BB4087 #BBB240 #40BB75

square

#4049BB #BB4087 #BBB240 #40BB75

split-complementary

#4049BB #BB7540 #87BB40

monochromatic

#212560 #30378D #4049BB #6C73CD #999EDC

Accessibility & contrast

On white

7.27

#4049BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#4049BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4049BB

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4049BB	#FFFFFF	#000000	##FFFFFF
##4049BB	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CBF

Deuteranopia (green-blind)

#0051B9

Tritanopia (blue-blind)

#00657B

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #4049bb;
/* rgb */ color: rgb(64, 73, 187);
/* oklch */ color: oklch(46.9% 0.177 273.9);

Tailwind

colors: {
  custom: {
    50: '#837bd0',
    500: '#4049bb',
    950: '#000000',
  },
}

SCSS

$custom: #4049bb;
$custom-light: #837bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4049bb",
  "rgb": {
    "r": 64,
    "g": 73,
    "b": 187
  },
  "hsl": {
    "h": 235.61,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.46854,
    "c": 0.17694,
    "h": 273.9
  },
  "luminance": 0.09443
}

Semantic roles & 50–950 ramp

primary

#4049BB

secondary

#C8C48F

accent

#CF4FD9

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #4049BB

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

Preview Lab → · Contrast checker → · Palette generator →