#4B40DB#4B40DB

#4B40DB is a mid, highly saturated blue. Relative luminance 0.103; OKLCH L 49.0% C 0.225 H 277.2°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#4B40DB
RGB	rgb(75, 64, 219)
HSL	hsl(244, 68%, 55%)
HSV	hsv(244, 71%, 86%)
CMYK	cmyk(65.8%, 70.8%, 0%, 14.1%)
CIE-LAB	lab(38.33, 50.35, -77.33)
CIE-LCH	lch(38.33, 92.28, 303.07°)
OKLab	oklab(48.99% 0.0284 -0.2233)
OKLCH	oklch(48.99% 0.225 277.2)
XYZ	xyz(17.5171, 10.2756, 68.0644)
Luminance	0.1028 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.90

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B40DB #D0DB40

analogous

#4082DB #4B40DB #9840DB

triadic

#4B40DB #DB4B40 #40DB4B

tetradic

#4B40DB #DB4082 #D0DB40 #40DB98

square

#4B40DB #DB4082 #D0DB40 #40DB98

split-complementary

#4B40DB #DB9840 #82DB40

monochromatic

#211987 #2E23BB #4B40DB #7C73E5 #ACA7EE

Accessibility & contrast

On white

6.87

#4B40DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#4B40DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B40DB

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B40DB	#FFFFFF	#000000	##FFFFFF
##4B40DB	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061E0

Deuteranopia (green-blind)

#0054D8

Tritanopia (blue-blind)

#006B89

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #4b40db;
/* rgb */ color: rgb(75, 64, 219);
/* oklch */ color: oklch(49.0% 0.225 277.2);

Tailwind

colors: {
  custom: {
    50: '#8f77e7',
    500: '#4b40db',
    950: '#000000',
  },
}

SCSS

$custom: #4b40db;
$custom-light: #8f77e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4b40db",
  "rgb": {
    "r": 75,
    "g": 64,
    "b": 219
  },
  "hsl": {
    "h": 244.258,
    "s": 68.282,
    "l": 55.49
  },
  "oklch": {
    "l": 0.48992,
    "c": 0.22512,
    "h": 277.2
  },
  "luminance": 0.10277
}

Semantic roles & 50–950 ramp

primary

#4B40DB

secondary

#D7DC9B

accent

#EB3DDF

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0916

muted

#7E7B84

Preview Lab

Preview with #4B40DB

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

Preview Lab → · Contrast checker → · Palette generator →