#4C66DD#4C66DD

#4C66DD is a mid, vivid blue. Relative luminance 0.163; OKLCH L 55.6% C 0.183 H 270.1°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#4C66DD
RGB	rgb(76, 102, 221)
HSL	hsl(229, 68%, 58%)
HSV	hsv(229, 66%, 87%)
CMYK	cmyk(65.6%, 53.8%, 0%, 13.3%)
CIE-LAB	lab(47.31, 28.31, -63.81)
CIE-LCH	lch(47.31, 69.81, 293.93°)
OKLab	oklab(55.65% 0.0004 -0.1834)
OKLCH	oklch(55.65% 0.183 270.1)
XYZ	xyz(20.7786, 16.2578, 70.4356)
Luminance	0.1626 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C66DD #DDC34C

analogous

#4CAFDD #4C66DD #7A4CDD

triadic

#4C66DD #DD4C66 #66DD4C

tetradic

#4C66DD #DD4CAF #DDC34C #4CDD7A

square

#4C66DD #DD4CAF #DDC34C #4CDD7A

split-complementary

#4C66DD #DD7A4C #AFDD4C

monochromatic

#1C3193 #2642C6 #4C66DD #7F92E7 #B3BEF1

Accessibility & contrast

On white

4.94

#4C66DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#4C66DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C66DD

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C66DD	#FFFFFF	#000000	##FFFFFF
##4C66DD	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0977E1

Deuteranopia (green-blind)

#006ADB

Tritanopia (blue-blind)

#008298

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #4c66dd;
/* rgb */ color: rgb(76, 102, 221);
/* oklch */ color: oklch(55.6% 0.183 270.1);

Tailwind

colors: {
  custom: {
    50: '#8d91e8',
    500: '#4c66dd',
    950: '#000000',
  },
}

SCSS

$custom: #4c66dd;
$custom-light: #8d91e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4c66dd",
  "rgb": {
    "r": 76,
    "g": 102,
    "b": 221
  },
  "hsl": {
    "h": 229.241,
    "s": 68.075,
    "l": 58.235
  },
  "oklch": {
    "l": 0.5565,
    "c": 0.18342,
    "h": 270.1
  },
  "luminance": 0.1626
}

Semantic roles & 50–950 ramp

primary

#4C66DD

secondary

#DFD5A6

accent

#CC3DEB

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #4C66DD

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

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