#4540BC#4540BC

#4540BC is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.7% C 0.188 H 277.7°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#4540BC
RGB	rgb(69, 64, 188)
HSL	hsl(242, 49%, 49%)
HSV	hsv(242, 66%, 74%)
CMYK	cmyk(63.3%, 66%, 0%, 26.3%)
CIE-LAB	lab(35.13, 39.61, -64.61)
CIE-LCH	lch(35.13, 75.78, 301.51°)
OKLab	oklab(45.73% 0.0253 -0.1862)
OKLCH	oklch(45.73% 0.188 277.7)
XYZ	xyz(13.3618, 8.5618, 48.5157)
Luminance	0.0856 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.77

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4540BC #B7BC40

analogous

#4079BC #4540BC #8340BC

triadic

#4540BC #BC4540 #40BC45

tetradic

#4540BC #BC4079 #B7BC40 #40BC83

square

#4540BC #BC4079 #B7BC40 #40BC83

split-complementary

#4540BC #BC8340 #79BC40

monochromatic

#232161 #34308E #4540BC #706CCD #9D9ADD

Accessibility & contrast

On white

7.74

#4540BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#4540BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4540BC

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4540BC	#FFFFFF	#000000	##FFFFFF
##4540BC	1.00	7.74	2.71	7.74
#FFFFFF	7.74	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C0

Deuteranopia (green-blind)

#004DBA

Tritanopia (blue-blind)

#006078

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #4540bc;
/* rgb */ color: rgb(69, 64, 188);
/* oklch */ color: oklch(45.7% 0.188 277.7);

Tailwind

colors: {
  custom: {
    50: '#8675d1',
    500: '#4540bc',
    950: '#000000',
  },
}

SCSS

$custom: #4540bc;
$custom-light: #8675d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4540bc",
  "rgb": {
    "r": 69,
    "g": 64,
    "b": 188
  },
  "hsl": {
    "h": 242.419,
    "s": 49.206,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45727,
    "c": 0.18796,
    "h": 277.7
  },
  "luminance": 0.08563
}

Semantic roles & 50–950 ramp

primary

#4540BC

secondary

#C6C98F

accent

#D94FD3

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #4540BC

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

Preview Lab → · Contrast checker → · Palette generator →