#4540CB#4540CB

#4540CB is a mid, highly saturated blue. Relative luminance 0.092; OKLCH L 47.1% C 0.207 H 276.5°. Best body text is #FFFFFF at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#4540CB
RGB	rgb(69, 64, 203)
HSL	hsl(242, 57%, 52%)
HSV	hsv(242, 68%, 80%)
CMYK	cmyk(66%, 68.5%, 0%, 20.4%)
CIE-LAB	lab(36.45, 44.52, -71.21)
CIE-LCH	lch(36.45, 83.98, 302.01°)
OKLab	oklab(47.09% 0.0234 -0.2056)
OKLCH	oklch(47.09% 0.207 276.5)
XYZ	xyz(15.0636, 9.2425, 57.4785)
Luminance	0.0924 (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

#4540CB #C6CB40

analogous

#4081CB #4540CB #8A40CB

triadic

#4540CB #CB4540 #40CB45

tetradic

#4540CB #CB4081 #C6CB40 #40CB8A

square

#4540CB #CB4081 #C6CB40 #40CB8A

split-complementary

#4540CB #CB8A40 #81CB40

monochromatic

#221F72 #302CA2 #4540CB #7470D8 #A3A0E5

Accessibility & contrast

On white

7.37

#4540CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#4540CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4540CB

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4540CB	#FFFFFF	#000000	##FFFFFF
##4540CB	1.00	7.37	2.85	7.37
#FFFFFF	7.37	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCF

Deuteranopia (green-blind)

#0050C8

Tritanopia (blue-blind)

#006580

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #4540cb;
/* rgb */ color: rgb(69, 64, 203);
/* oklch */ color: oklch(47.1% 0.207 276.5);

Tailwind

colors: {
  custom: {
    50: '#8976dc',
    500: '#4540cb',
    950: '#000000',
  },
}

SCSS

$custom: #4540cb;
$custom-light: #8976dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4540cb",
  "rgb": {
    "r": 69,
    "g": 64,
    "b": 203
  },
  "hsl": {
    "h": 242.158,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.47086,
    "c": 0.20693,
    "h": 276.5
  },
  "luminance": 0.09244
}

Semantic roles & 50–950 ramp

primary

#4540CB

secondary

#CFD295

accent

#E047DB

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4540CB

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

Preview Lab → · Contrast checker → · Palette generator →