#4D66D9#4D66D9

#4D66D9 is a mid, vivid blue. Relative luminance 0.161; OKLCH L 55.4% C 0.178 H 270.4°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#4D66D9
RGB	rgb(77, 102, 217)
HSL	hsl(229, 65%, 58%)
HSV	hsv(229, 65%, 85%)
CMYK	cmyk(64.5%, 53%, 0%, 14.9%)
CIE-LAB	lab(47.09, 27.09, -61.90)
CIE-LCH	lch(47.09, 67.57, 293.64°)
OKLab	oklab(55.41% 0.0011 -0.1777)
OKLCH	oklch(55.41% 0.178 270.4)
XYZ	xyz(20.3321, 16.0884, 67.6661)
Luminance	0.1609 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D66D9 #D9C04D

analogous

#4DACD9 #4D66D9 #7A4DD9

triadic

#4D66D9 #D94D66 #66D94D

tetradic

#4D66D9 #D94DAC #D9C04D #4DD97A

square

#4D66D9 #D94DAC #D9C04D #4DD97A

split-complementary

#4D66D9 #D97A4D #ACD94D

monochromatic

#1E328D #2944C0 #4D66D9 #7F91E4 #B2BDEF

Accessibility & contrast

On white

4.98

#4D66D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#4D66D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D66D9

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D66D9	#FFFFFF	#000000	##FFFFFF
##4D66D9	1.00	4.98	4.22	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1876DD

Deuteranopia (green-blind)

#006AD7

Tritanopia (blue-blind)

#008196

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #4d66d9;
/* rgb */ color: rgb(77, 102, 217);
/* oklch */ color: oklch(55.4% 0.178 270.4);

Tailwind

colors: {
  custom: {
    50: '#8d91e5',
    500: '#4d66d9',
    950: '#000000',
  },
}

SCSS

$custom: #4d66d9;
$custom-light: #8d91e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4d66d9",
  "rgb": {
    "r": 77,
    "g": 102,
    "b": 217
  },
  "hsl": {
    "h": 229.286,
    "s": 64.815,
    "l": 57.647
  },
  "oklch": {
    "l": 0.55411,
    "c": 0.17775,
    "h": 270.4
  },
  "luminance": 0.1609
}

Semantic roles & 50–950 ramp

primary

#4D66D9

secondary

#DDD3A5

accent

#CA40E8

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #4D66D9

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

Preview Lab → · Contrast checker → · Palette generator →