#4B40D8#4B40D8

#4B40D8 is a mid, highly saturated blue. Relative luminance 0.101; OKLCH L 48.7% C 0.222 H 277.5°. Best body text is #FFFFFF at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#4B40D8
RGB	rgb(75, 64, 216)
HSL	hsl(244, 66%, 55%)
HSV	hsv(244, 70%, 85%)
CMYK	cmyk(65.3%, 70.4%, 0%, 15.3%)
CIE-LAB	lab(38.06, 49.41, -76.07)
CIE-LCH	lch(38.06, 90.70, 303.01°)
OKLab	oklab(48.71% 0.0289 -0.2196)
OKLCH	oklch(48.71% 0.222 277.5)
XYZ	xyz(17.1257, 10.1191, 66.0031)
Luminance	0.1012 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.67

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B40D8 #CDD840

analogous

#4081D8 #4B40D8 #9740D8

triadic

#4B40D8 #D84B40 #40D84B

tetradic

#4B40D8 #D84081 #CDD840 #40D897

square

#4B40D8 #D84081 #CDD840 #40D897

split-complementary

#4B40D8 #D89740 #81D840

monochromatic

#221B83 #3025B6 #4B40D8 #7B73E2 #ABA6ED

Accessibility & contrast

On white

6.94

#4B40D8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#4B40D8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B40D8

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B40D8	#FFFFFF	#000000	##FFFFFF
##4B40D8	1.00	6.94	3.02	6.94
#FFFFFF	6.94	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060DD

Deuteranopia (green-blind)

#0053D5

Tritanopia (blue-blind)

#006A88

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #4b40d8;
/* rgb */ color: rgb(75, 64, 216);
/* oklch */ color: oklch(48.7% 0.222 277.5);

Tailwind

colors: {
  custom: {
    50: '#8e77e5',
    500: '#4b40d8',
    950: '#000000',
  },
}

SCSS

$custom: #4b40d8;
$custom-light: #8e77e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4b40d8",
  "rgb": {
    "r": 75,
    "g": 64,
    "b": 216
  },
  "hsl": {
    "h": 244.342,
    "s": 66.087,
    "l": 54.902
  },
  "oklch": {
    "l": 0.4871,
    "c": 0.22152,
    "h": 277.5
  },
  "luminance": 0.10121
}

Semantic roles & 50–950 ramp

primary

#4B40D8

secondary

#D5DA9A

accent

#E93FDD

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0E0916

muted

#7E7B84

Preview Lab

Preview with #4B40D8

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

Preview Lab → · Contrast checker → · Palette generator →