#4B40BC#4B40BC

#4B40BC is a mid, vivid blue. Relative luminance 0.088; OKLCH L 46.2% C 0.187 H 280.2°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#4B40BC
RGB	rgb(75, 64, 188)
HSL	hsl(245, 49%, 49%)
HSV	hsv(245, 66%, 74%)
CMYK	cmyk(60.1%, 66%, 0%, 26.3%)
CIE-LAB	lab(35.58, 40.52, -63.85)
CIE-LCH	lch(35.58, 75.62, 302.40°)
OKLab	oklab(46.17% 0.0329 -0.1838)
OKLCH	oklch(46.17% 0.187 280.2)
XYZ	xyz(13.8093, 8.7925, 48.5366)
Luminance	0.0879 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.25

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B40BC #B1BC40

analogous

#4073BC #4B40BC #8940BC

triadic

#4B40BC #BC4B40 #40BC4B

tetradic

#4B40BC #BC4073 #B1BC40 #40BC89

square

#4B40BC #BC4073 #B1BC40 #40BC89

split-complementary

#4B40BC #BC8940 #73BC40

monochromatic

#272161 #39308E #4B40BC #756CCD #A09ADD

Accessibility & contrast

On white

7.61

#4B40BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#4B40BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B40BC

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B40BC	#FFFFFF	#000000	##FFFFFF
##4B40BC	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C0

Deuteranopia (green-blind)

#004FBA

Tritanopia (blue-blind)

#006078

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #4b40bc;
/* rgb */ color: rgb(75, 64, 188);
/* oklch */ color: oklch(46.2% 0.187 280.2);

Tailwind

colors: {
  custom: {
    50: '#8976d1',
    500: '#4b40bc',
    950: '#000000',
  },
}

SCSS

$custom: #4b40bc;
$custom-light: #8976d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4b40bc",
  "rgb": {
    "r": 75,
    "g": 64,
    "b": 188
  },
  "hsl": {
    "h": 245.323,
    "s": 49.206,
    "l": 49.412
  },
  "oklch": {
    "l": 0.46173,
    "c": 0.18677,
    "h": 280.2
  },
  "luminance": 0.08793
}

Semantic roles & 50–950 ramp

primary

#4B40BC

secondary

#C3C98F

accent

#D94FCD

background

#F9F7FD

surface

#F1EDFA

border

#CBC8D3

text

#0D0814

muted

#7E7B83

Preview Lab

Preview with #4B40BC

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

Preview Lab → · Contrast checker → · Palette generator →