#4B66E5#4B66E5

#4B66E5 is a mid, vivid blue. Relative luminance 0.167; OKLCH L 56.2% C 0.194 H 269.9°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#4B66E5
RGB	rgb(75, 102, 229)
HSL	hsl(229, 75%, 60%)
HSV	hsv(229, 67%, 90%)
CMYK	cmyk(67.2%, 55.5%, 0%, 10.2%)
CIE-LAB	lab(47.82, 30.93, -67.52)
CIE-LCH	lch(47.82, 74.26, 294.61°)
OKLab	oklab(56.2% -0.0002 -0.1943)
OKLCH	oklch(56.2% 0.194 269.9)
XYZ	xyz(21.7911, 16.6537, 76.1796)
Luminance	0.1666 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B66E5 #E5CA4B

analogous

#4BB3E5 #4B66E5 #7D4BE5

triadic

#4B66E5 #E54B66 #66E54B

tetradic

#4B66E5 #E54BB3 #E5CA4B #4BE57D

square

#4B66E5 #E54BB3 #E5CA4B #4BE57D

split-complementary

#4B66E5 #E57D4B #B3E54B

monochromatic

#172F9F #1F3ED4 #4B66E5 #8093ED #B6C1F4

Accessibility & contrast

On white

4.85

#4B66E5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#4B66E5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B66E5

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B66E5	#FFFFFF	#000000	##FFFFFF
##4B66E5	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0079E9

Deuteranopia (green-blind)

#006BE2

Tritanopia (blue-blind)

#00859C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #4b66e5;
/* rgb */ color: rgb(75, 102, 229);
/* oklch */ color: oklch(56.2% 0.194 269.9);

Tailwind

colors: {
  custom: {
    50: '#8e91ee',
    500: '#4b66e5',
    950: '#000000',
  },
}

SCSS

$custom: #4b66e5;
$custom-light: #8e91ee;
$custom-dark: #000000;

JSON

{
  "hex": "#4b66e5",
  "rgb": {
    "r": 75,
    "g": 102,
    "b": 229
  },
  "hsl": {
    "h": 229.481,
    "s": 74.757,
    "l": 59.608
  },
  "oklch": {
    "l": 0.56196,
    "c": 0.19432,
    "h": 269.9
  },
  "luminance": 0.16656
}

Semantic roles & 50–950 ramp

primary

#4B66E5

secondary

#E4D9A8

accent

#D136F1

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #4B66E5

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

Preview Lab → · Contrast checker → · Palette generator →