#4B66D7#4B66D7

#4B66D7 is a mid, vivid blue. Relative luminance 0.159; OKLCH L 55.2% C 0.176 H 269.7°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#4B66D7
RGB	rgb(75, 102, 215)
HSL	hsl(228, 64%, 57%)
HSV	hsv(228, 65%, 84%)
CMYK	cmyk(65.1%, 52.6%, 0%, 15.7%)
CIE-LAB	lab(46.85, 26.08, -61.16)
CIE-LCH	lch(46.85, 66.49, 293.09°)
OKLab	oklab(55.16% -0.001 -0.1756)
OKLCH	oklch(55.16% 0.176 269.7)
XYZ	xyz(19.9146, 15.9031, 66.2969)
Luminance	0.1590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B66D7 #D7BC4B

analogous

#4BACD7 #4B66D7 #764BD7

triadic

#4B66D7 #D74B66 #66D74B

tetradic

#4B66D7 #D74BAC #D7BC4B #4BD776

square

#4B66D7 #D74BAC #D7BC4B #4BD776

split-complementary

#4B66D7 #D7764B #ACD74B

monochromatic

#1E3389 #2A46BB #4B66D7 #7D91E2 #AFBBED

Accessibility & contrast

On white

5.02

#4B66D7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#4B66D7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B66D7

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B66D7	#FFFFFF	#000000	##FFFFFF
##4B66D7	1.00	5.02	4.18	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C76DB

Deuteranopia (green-blind)

#0069D5

Tritanopia (blue-blind)

#008195

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #4b66d7;
/* rgb */ color: rgb(75, 102, 215);
/* oklch */ color: oklch(55.2% 0.176 269.7);

Tailwind

colors: {
  custom: {
    50: '#8c91e4',
    500: '#4b66d7',
    950: '#000000',
  },
}

SCSS

$custom: #4b66d7;
$custom-light: #8c91e4;
$custom-dark: #000000;

JSON

{
  "hex": "#4b66d7",
  "rgb": {
    "r": 75,
    "g": 102,
    "b": 215
  },
  "hsl": {
    "h": 228.429,
    "s": 63.636,
    "l": 56.863
  },
  "oklch": {
    "l": 0.55156,
    "c": 0.17562,
    "h": 269.7
  },
  "luminance": 0.15905
}

Semantic roles & 50–950 ramp

primary

#4B66D7

secondary

#DBD0A2

accent

#C741E7

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #4B66D7

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

Preview Lab → · Contrast checker → · Palette generator →