#4C66E5#4C66E5

#4C66E5 is a mid, vivid blue. Relative luminance 0.167; OKLCH L 56.2% C 0.194 H 270.2°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#4C66E5
RGB	rgb(76, 102, 229)
HSL	hsl(230, 75%, 60%)
HSV	hsv(230, 67%, 90%)
CMYK	cmyk(66.8%, 55.5%, 0%, 10.2%)
CIE-LAB	lab(47.87, 31.08, -67.43)
CIE-LCH	lch(47.87, 74.25, 294.74°)
OKLab	oklab(56.25% 0.0008 -0.194)
OKLCH	oklch(56.25% 0.194 270.2)
XYZ	xyz(21.8699, 16.6943, 76.1833)
Luminance	0.1670 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C66E5 #E5CB4C

analogous

#4CB2E5 #4C66E5 #7F4CE5

triadic

#4C66E5 #E54C66 #66E54C

tetradic

#4C66E5 #E54CB2 #E5CB4C #4CE57F

square

#4C66E5 #E54CB2 #E5CB4C #4CE57F

split-complementary

#4C66E5 #E57F4C #B2E54C

monochromatic

#172E9F #1F3ED5 #4C66E5 #8194ED #B7C1F5

Accessibility & contrast

On white

4.84

#4C66E5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#4C66E5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C66E5

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C66E5	#FFFFFF	#000000	##FFFFFF
##4C66E5	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0079E9

Deuteranopia (green-blind)

#006BE2

Tritanopia (blue-blind)

#00859C

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #4c66e5;
/* rgb */ color: rgb(76, 102, 229);
/* oklch */ color: oklch(56.2% 0.194 270.2);

Tailwind

colors: {
  custom: {
    50: '#8f91ee',
    500: '#4c66e5',
    950: '#000000',
  },
}

SCSS

$custom: #4c66e5;
$custom-light: #8f91ee;
$custom-dark: #000000;

JSON

{
  "hex": "#4c66e5",
  "rgb": {
    "r": 76,
    "g": 102,
    "b": 229
  },
  "hsl": {
    "h": 229.804,
    "s": 74.634,
    "l": 59.804
  },
  "oklch": {
    "l": 0.56249,
    "c": 0.19405,
    "h": 270.2
  },
  "luminance": 0.16696
}

Semantic roles & 50–950 ramp

primary

#4C66E5

secondary

#E4DAA9

accent

#D237F1

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #4C66E5

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

Preview Lab → · Contrast checker → · Palette generator →