#4540B2#4540B2

#4540B2 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.9% C 0.175 H 278.6°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).

Color values

HEX	#4540B2
RGB	rgb(69, 64, 178)
HSL	hsl(243, 47%, 47%)
HSV	hsv(243, 64%, 70%)
CMYK	cmyk(61.2%, 64%, 0%, 30.2%)
CIE-LAB	lab(34.28, 36.31, -60.08)
CIE-LCH	lch(34.28, 70.20, 301.15°)
OKLab	oklab(44.85% 0.0262 -0.173)
OKLCH	oklch(44.85% 0.175 278.6)
XYZ	xyz(12.3210, 8.1454, 43.0338)
Luminance	0.0815 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.61

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4540B2 #ADB240

analogous

#4074B2 #4540B2 #7E40B2

triadic

#4540B2 #B24540 #40B245

tetradic

#4540B2 #B24074 #ADB240 #40B27E

square

#4540B2 #B24074 #ADB240 #40B27E

split-complementary

#4540B2 #B27E40 #74B240

monochromatic

#222058 #343085 #4540B2 #6B67C8 #9794D8

Accessibility & contrast

On white

7.99

#4540B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#4540B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4540B2

7.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4540B2	#FFFFFF	#000000	##FFFFFF
##4540B2	1.00	7.99	2.63	7.99
#FFFFFF	7.99	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B6

Deuteranopia (green-blind)

#004CB0

Tritanopia (blue-blind)

#005D73

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #4540b2;
/* rgb */ color: rgb(69, 64, 178);
/* oklch */ color: oklch(44.9% 0.175 278.6);

Tailwind

colors: {
  custom: {
    50: '#8475ca',
    500: '#4540b2',
    950: '#000000',
  },
}

SCSS

$custom: #4540b2;
$custom-light: #8475ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4540b2",
  "rgb": {
    "r": 69,
    "g": 64,
    "b": 178
  },
  "hsl": {
    "h": 242.632,
    "s": 47.107,
    "l": 47.451
  },
  "oklch": {
    "l": 0.44853,
    "c": 0.17493,
    "h": 278.6
  },
  "luminance": 0.08146
}

Semantic roles & 50–950 ramp

primary

#4540B2

secondary

#C1C48A

accent

#D751D1

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #4540B2

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

Preview Lab → · Contrast checker → · Palette generator →