#4540B9#4540B9

#4540B9 is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.5% C 0.184 H 278.0°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#4540B9
RGB	rgb(69, 64, 185)
HSL	hsl(242, 49%, 49%)
HSV	hsv(242, 65%, 73%)
CMYK	cmyk(62.7%, 65.4%, 0%, 27.5%)
CIE-LAB	lab(34.87, 38.62, -63.26)
CIE-LCH	lch(34.87, 74.12, 301.40°)
OKLab	oklab(45.46% 0.0256 -0.1823)
OKLCH	oklch(45.46% 0.184 278)
XYZ	xyz(13.0418, 8.4338, 46.8301)
Luminance	0.0843 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.60

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4540B9 #B4B940

analogous

#4078B9 #4540B9 #8240B9

triadic

#4540B9 #B94540 #40B945

tetradic

#4540B9 #B94078 #B4B940 #40B982

square

#4540B9 #B94078 #B4B940 #40B982

split-complementary

#4540B9 #B98240 #78B940

monochromatic

#23215E #34308C #4540B9 #6F6BCC #9B98DB

Accessibility & contrast

On white

7.82

#4540B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#4540B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4540B9

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4540B9	#FFFFFF	#000000	##FFFFFF
##4540B9	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BD

Deuteranopia (green-blind)

#004DB7

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #4540b9;
/* rgb */ color: rgb(69, 64, 185);
/* oklch */ color: oklch(45.5% 0.184 278.0);

Tailwind

colors: {
  custom: {
    50: '#8675cf',
    500: '#4540b9',
    950: '#000000',
  },
}

SCSS

$custom: #4540b9;
$custom-light: #8675cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4540b9",
  "rgb": {
    "r": 69,
    "g": 64,
    "b": 185
  },
  "hsl": {
    "h": 242.479,
    "s": 48.594,
    "l": 48.824
  },
  "oklch": {
    "l": 0.45462,
    "c": 0.18408,
    "h": 278
  },
  "luminance": 0.08435
}

Semantic roles & 50–950 ramp

primary

#4540B9

secondary

#C5C78E

accent

#D850D3

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #4540B9

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

Preview Lab → · Contrast checker → · Palette generator →