#4245AB#4245AB

#4245AB is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.9% C 0.160 H 276.6°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#4245AB
RGB	rgb(66, 69, 171)
HSL	hsl(238, 44%, 46%)
HSV	hsv(238, 61%, 67%)
CMYK	cmyk(61.4%, 59.6%, 0%, 32.9%)
CIE-LAB	lab(34.71, 30.31, -55.23)
CIE-LCH	lch(34.71, 63.00, 298.76°)
OKLab	oklab(44.93% 0.0183 -0.1588)
OKLCH	oklch(44.93% 0.16 276.6)
XYZ	xyz(11.7232, 8.3539, 39.5149)
Luminance	0.0835 (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

#4245AB #ABA842

analogous

#427AAB #4245AB #7442AB

triadic

#4245AB #AB4245 #45AB42

tetradic

#4245AB #AB427A #ABA842 #42AB74

square

#4245AB #AB427A #ABA842 #42AB74

split-complementary

#4245AB #AB7442 #7AAB42

monochromatic

#202153 #31337F #4245AB #6669C4 #9294D5

Accessibility & contrast

On white

7.86

#4245AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#4245AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4245AB

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4245AB	#FFFFFF	#000000	##FFFFFF
##4245AB	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056AE

Deuteranopia (green-blind)

#004DA9

Tritanopia (blue-blind)

#005E71

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #4245ab;
/* rgb */ color: rgb(66, 69, 171);
/* oklch */ color: oklch(44.9% 0.160 276.6);

Tailwind

colors: {
  custom: {
    50: '#8178c5',
    500: '#4245ab',
    950: '#000000',
  },
}

SCSS

$custom: #4245ab;
$custom-light: #8178c5;
$custom-dark: #000000;

JSON

{
  "hex": "#4245ab",
  "rgb": {
    "r": 66,
    "g": 69,
    "b": 171
  },
  "hsl": {
    "h": 238.286,
    "s": 44.304,
    "l": 46.471
  },
  "oklch": {
    "l": 0.44934,
    "c": 0.15982,
    "h": 276.6
  },
  "luminance": 0.08355
}

Semantic roles & 50–950 ramp

primary

#4245AB

secondary

#C0BF88

accent

#D054D4

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #4245AB

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

Preview Lab → · Contrast checker → · Palette generator →