#4245BB#4245BB

#4245BB is a mid, vivid blue. Relative luminance 0.090; OKLCH L 46.3% C 0.181 H 275.6°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#4245BB
RGB	rgb(66, 69, 187)
HSL	hsl(239, 48%, 50%)
HSV	hsv(239, 65%, 73%)
CMYK	cmyk(64.7%, 63.1%, 0%, 26.7%)
CIE-LAB	lab(35.99, 35.77, -62.62)
CIE-LCH	lch(35.99, 72.12, 299.74°)
OKLab	oklab(46.27% 0.0176 -0.1805)
OKLCH	oklch(46.27% 0.181 275.6)
XYZ	xyz(13.3416, 9.0012, 48.0384)
Luminance	0.0900 (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

#4245BB #BBB842

analogous

#4282BB #4245BB #7B42BB

triadic

#4245BB #BB4245 #45BB42

tetradic

#4245BB #BB4282 #BBB842 #42BB7B

square

#4245BB #BB4282 #BBB842 #42BB7B

split-complementary

#4245BB #BB7B42 #82BB42

monochromatic

#222461 #32348E #4245BB #6E71CC #9C9DDC

Accessibility & contrast

On white

7.50

#4245BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#4245BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4245BB

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4245BB	#FFFFFF	#000000	##FFFFFF
##4245BB	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABF

Deuteranopia (green-blind)

#004FB9

Tritanopia (blue-blind)

#006379

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #4245bb;
/* rgb */ color: rgb(66, 69, 187);
/* oklch */ color: oklch(46.3% 0.181 275.6);

Tailwind

colors: {
  custom: {
    50: '#8479d0',
    500: '#4245bb',
    950: '#000000',
  },
}

SCSS

$custom: #4245bb;
$custom-light: #8479d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4245bb",
  "rgb": {
    "r": 66,
    "g": 69,
    "b": 187
  },
  "hsl": {
    "h": 238.512,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.46274,
    "c": 0.18135,
    "h": 275.6
  },
  "luminance": 0.09002
}

Semantic roles & 50–950 ramp

primary

#4245BB

secondary

#C8C791

accent

#D450D7

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #4245BB

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

Preview Lab → · Contrast checker → · Palette generator →