#4C66DB#4C66DB

#4C66DB is a mid, vivid blue. Relative luminance 0.162; OKLCH L 55.5% C 0.181 H 270.1°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#4C66DB
RGB	rgb(76, 102, 219)
HSL	hsl(229, 67%, 58%)
HSV	hsv(229, 65%, 86%)
CMYK	cmyk(65.3%, 53.4%, 0%, 14.1%)
CIE-LAB	lab(47.17, 27.62, -62.90)
CIE-LCH	lch(47.17, 68.70, 293.71°)
OKLab	oklab(55.5% 0.0003 -0.1807)
OKLCH	oklch(55.5% 0.181 270.1)
XYZ	xyz(20.5137, 16.1518, 69.0407)
Luminance	0.1615 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C66DB #DBC14C

analogous

#4CADDB #4C66DB #794CDB

triadic

#4C66DB #DB4C66 #66DB4C

tetradic

#4C66DB #DB4CAD #DBC14C #4CDB79

square

#4C66DB #DB4CAD #DBC14C #4CDB79

split-complementary

#4C66DB #DB794C #ADDB4C

monochromatic

#1D3290 #2743C3 #4C66DB #7F92E5 #B2BDEF

Accessibility & contrast

On white

4.96

#4C66DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#4C66DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C66DB

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C66DB	#FFFFFF	#000000	##FFFFFF
##4C66DB	1.00	4.96	4.23	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1177DF

Deuteranopia (green-blind)

#006AD9

Tritanopia (blue-blind)

#008297

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #4c66db;
/* rgb */ color: rgb(76, 102, 219);
/* oklch */ color: oklch(55.5% 0.181 270.1);

Tailwind

colors: {
  custom: {
    50: '#8d91e7',
    500: '#4c66db',
    950: '#000000',
  },
}

SCSS

$custom: #4c66db;
$custom-light: #8d91e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4c66db",
  "rgb": {
    "r": 76,
    "g": 102,
    "b": 219
  },
  "hsl": {
    "h": 229.091,
    "s": 66.512,
    "l": 57.843
  },
  "oklch": {
    "l": 0.55502,
    "c": 0.18073,
    "h": 270.1
  },
  "luminance": 0.16154
}

Semantic roles & 50–950 ramp

primary

#4C66DB

secondary

#DED4A5

accent

#CA3EE9

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #4C66DB

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

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