#4D66DD#4D66DD

#4D66DD is a mid, vivid blue. Relative luminance 0.163; OKLCH L 55.7% C 0.183 H 270.4°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#4D66DD
RGB	rgb(77, 102, 221)
HSL	hsl(230, 68%, 58%)
HSV	hsv(230, 65%, 87%)
CMYK	cmyk(65.2%, 53.8%, 0%, 13.3%)
CIE-LAB	lab(47.36, 28.47, -63.73)
CIE-LCH	lch(47.36, 69.80, 294.07°)
OKLab	oklab(55.7% 0.0014 -0.1831)
OKLCH	oklch(55.7% 0.183 270.4)
XYZ	xyz(20.8587, 16.2991, 70.4394)
Luminance	0.1630 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D66DD #DDC44D

analogous

#4DAEDD #4D66DD #7C4DDD

triadic

#4D66DD #DD4D66 #66DD4D

tetradic

#4D66DD #DD4DAE #DDC44D #4DDD7C

square

#4D66DD #DD4DAE #DDC44D #4DDD7C

split-complementary

#4D66DD #DD7C4D #AEDD4D

monochromatic

#1C3193 #2642C7 #4D66DD #8092E7 #B4BEF1

Accessibility & contrast

On white

4.93

#4D66DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#4D66DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D66DD

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D66DD	#FFFFFF	#000000	##FFFFFF
##4D66DD	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A77E1

Deuteranopia (green-blind)

#006ADB

Tritanopia (blue-blind)

#008298

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #4d66dd;
/* rgb */ color: rgb(77, 102, 221);
/* oklch */ color: oklch(55.7% 0.183 270.4);

Tailwind

colors: {
  custom: {
    50: '#8e91e8',
    500: '#4d66dd',
    950: '#000000',
  },
}

SCSS

$custom: #4d66dd;
$custom-light: #8e91e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4d66dd",
  "rgb": {
    "r": 77,
    "g": 102,
    "b": 221
  },
  "hsl": {
    "h": 229.583,
    "s": 67.925,
    "l": 58.431
  },
  "oklch": {
    "l": 0.55704,
    "c": 0.18314,
    "h": 270.4
  },
  "luminance": 0.16301
}

Semantic roles & 50–950 ramp

primary

#4D66DD

secondary

#DFD6A6

accent

#CD3DEB

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #4D66DD

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

Preview Lab → · Contrast checker → · Palette generator →