#4B40B7#4B40B7

#4B40B7 is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.7% C 0.180 H 280.7°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#4B40B7
RGB	rgb(75, 64, 183)
HSL	hsl(246, 48%, 48%)
HSV	hsv(246, 65%, 72%)
CMYK	cmyk(59%, 65%, 0%, 28.2%)
CIE-LAB	lab(35.16, 38.91, -61.58)
CIE-LCH	lch(35.16, 72.85, 302.29°)
OKLab	oklab(45.74% 0.0335 -0.1772)
OKLCH	oklch(45.74% 0.18 280.7)
XYZ	xyz(13.2796, 8.5806, 45.7470)
Luminance	0.0858 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 0.82

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B40B7 #ACB740

analogous

#4070B7 #4B40B7 #8640B7

triadic

#4B40B7 #B74B40 #40B74B

tetradic

#4B40B7 #B74070 #ACB740 #40B786

square

#4B40B7 #B74070 #ACB740 #40B786

split-complementary

#4B40B7 #B78640 #70B740

monochromatic

#26205C #38308A #4B40B7 #7269CB #9D97DB

Accessibility & contrast

On white

7.73

#4B40B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#4B40B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B40B7

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B40B7	#FFFFFF	#000000	##FFFFFF
##4B40B7	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BB

Deuteranopia (green-blind)

#004EB5

Tritanopia (blue-blind)

#005E76

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #4b40b7;
/* rgb */ color: rgb(75, 64, 183);
/* oklch */ color: oklch(45.7% 0.180 280.7);

Tailwind

colors: {
  custom: {
    50: '#8876ce',
    500: '#4b40b7',
    950: '#000000',
  },
}

SCSS

$custom: #4b40b7;
$custom-light: #8876ce;
$custom-dark: #000000;

JSON

{
  "hex": "#4b40b7",
  "rgb": {
    "r": 75,
    "g": 64,
    "b": 183
  },
  "hsl": {
    "h": 245.546,
    "s": 48.178,
    "l": 48.431
  },
  "oklch": {
    "l": 0.4574,
    "c": 0.18033,
    "h": 280.7
  },
  "luminance": 0.08582
}

Semantic roles & 50–950 ramp

primary

#4B40B7

secondary

#C1C68D

accent

#D850CB

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0D0814

muted

#7D7B82

Preview Lab

Preview with #4B40B7

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

Preview Lab → · Contrast checker → · Palette generator →