#4B66E7#4B66E7

#4B66E7 is a mid, vivid blue. Relative luminance 0.168; OKLCH L 56.3% C 0.197 H 270.0°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#4B66E7
RGB	rgb(75, 102, 231)
HSL	hsl(230, 76%, 60%)
HSV	hsv(230, 68%, 91%)
CMYK	cmyk(67.5%, 55.8%, 0%, 9.4%)
CIE-LAB	lab(47.96, 31.62, -68.41)
CIE-LCH	lch(47.96, 75.37, 294.81°)
OKLab	oklab(56.35% -0.0001 -0.197)
OKLCH	oklch(56.35% 0.197 270)
XYZ	xyz(22.0719, 16.7660, 77.6588)
Luminance	0.1677 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B66E7 #E7CC4B

analogous

#4BB4E7 #4B66E7 #7E4BE7

triadic

#4B66E7 #E74B66 #66E74B

tetradic

#4B66E7 #E74BB4 #E7CC4B #4BE77E

square

#4B66E7 #E74BB4 #E7CC4B #4BE77E

split-complementary

#4B66E7 #E77E4B #B4E74B

monochromatic

#162EA2 #1D3DD8 #4B66E7 #8194EE #B7C2F5

Accessibility & contrast

On white

4.82

#4B66E7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#4B66E7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B66E7

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B66E7	#FFFFFF	#000000	##FFFFFF
##4B66E7	1.00	4.82	4.35	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0079EB

Deuteranopia (green-blind)

#006BE4

Tritanopia (blue-blind)

#00859D

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #4b66e7;
/* rgb */ color: rgb(75, 102, 231);
/* oklch */ color: oklch(56.3% 0.197 270.0);

Tailwind

colors: {
  custom: {
    50: '#8f91ef',
    500: '#4b66e7',
    950: '#000000',
  },
}

SCSS

$custom: #4b66e7;
$custom-light: #8f91ef;
$custom-dark: #000000;

JSON

{
  "hex": "#4b66e7",
  "rgb": {
    "r": 75,
    "g": 102,
    "b": 231
  },
  "hsl": {
    "h": 229.615,
    "s": 76.471,
    "l": 60
  },
  "oklch": {
    "l": 0.56349,
    "c": 0.19696,
    "h": 270
  },
  "luminance": 0.16768
}

Semantic roles & 50–950 ramp

primary

#4B66E7

secondary

#E5DBA9

accent

#D235F3

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C17

muted

#7E7D85

Preview Lab

Preview with #4B66E7

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

Preview Lab → · Contrast checker → · Palette generator →