#4045AB#4045AB

#4045AB is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.8% C 0.160 H 275.7°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#4045AB
RGB	rgb(64, 69, 171)
HSL	hsl(237, 46%, 46%)
HSV	hsv(237, 63%, 67%)
CMYK	cmyk(62.6%, 59.6%, 0%, 32.9%)
CIE-LAB	lab(34.57, 29.97, -55.46)
CIE-LCH	lch(34.57, 63.04, 298.39°)
OKLab	oklab(44.8% 0.0159 -0.1595)
OKLCH	oklch(44.8% 0.16 275.7)
XYZ	xyz(11.5908, 8.2856, 39.5087)
Luminance	0.0829 (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

#4045AB #ABA640

analogous

#407AAB #4045AB #7040AB

triadic

#4045AB #AB4045 #45AB40

tetradic

#4045AB #AB407A #ABA640 #40AB70

square

#4045AB #AB407A #ABA640 #40AB70

split-complementary

#4045AB #AB7040 #7AAB40

monochromatic

#1F2152 #2F337E #4045AB #6368C5 #9093D5

Accessibility & contrast

On white

7.90

#4045AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#4045AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4045AB

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4045AB	#FFFFFF	#000000	##FFFFFF
##4045AB	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056AE

Deuteranopia (green-blind)

#004DA9

Tritanopia (blue-blind)

#005E71

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #4045ab;
/* rgb */ color: rgb(64, 69, 171);
/* oklch */ color: oklch(44.8% 0.160 275.7);

Tailwind

colors: {
  custom: {
    50: '#8078c5',
    500: '#4045ab',
    950: '#000000',
  },
}

SCSS

$custom: #4045ab;
$custom-light: #8078c5;
$custom-dark: #000000;

JSON

{
  "hex": "#4045ab",
  "rgb": {
    "r": 64,
    "g": 69,
    "b": 171
  },
  "hsl": {
    "h": 237.196,
    "s": 45.532,
    "l": 46.078
  },
  "oklch": {
    "l": 0.44796,
    "c": 0.16029,
    "h": 275.7
  },
  "luminance": 0.08287
}

Semantic roles & 50–950 ramp

primary

#4045AB

secondary

#C1BE86

accent

#CF53D5

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #4045AB

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

Preview Lab → · Contrast checker → · Palette generator →