#4D66CB#4D66CB

#4D66CB is a mid, vivid blue. Relative luminance 0.154; OKLCH L 54.4% C 0.159 H 270.0°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#4D66CB
RGB	rgb(77, 102, 203)
HSL	hsl(228, 55%, 55%)
HSV	hsv(228, 62%, 80%)
CMYK	cmyk(62.1%, 49.8%, 0%, 20.4%)
CIE-LAB	lab(46.16, 22.27, -55.39)
CIE-LCH	lch(46.16, 59.70, 291.90°)
OKLab	oklab(54.42% -0.0001 -0.1586)
OKLCH	oklch(54.42% 0.159 270)
XYZ	xyz(18.5878, 15.3907, 58.4795)
Luminance	0.1539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D66CB #CBB24D

analogous

#4DA5CB #4D66CB #734DCB

triadic

#4D66CB #CB4D66 #66CB4D

tetradic

#4D66CB #CB4DA5 #CBB24D #4DCB73

square

#4D66CB #CB4DA5 #CBB24D #4DCB73

split-complementary

#4D66CB #CB734D #A5CB4D

monochromatic

#24357A #3149A9 #4D66CB #7C8FD9 #ACB7E7

Accessibility & contrast

On white

5.15

#4D66CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#4D66CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D66CB

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D66CB	#FFFFFF	#000000	##FFFFFF
##4D66CB	1.00	5.15	4.08	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.08	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F73CF

Deuteranopia (green-blind)

#1168C9

Tritanopia (blue-blind)

#007D8F

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #4d66cb;
/* rgb */ color: rgb(77, 102, 203);
/* oklch */ color: oklch(54.4% 0.159 270.0);

Tailwind

colors: {
  custom: {
    50: '#8a91db',
    500: '#4d66cb',
    950: '#000000',
  },
}

SCSS

$custom: #4d66cb;
$custom-light: #8a91db;
$custom-dark: #000000;

JSON

{
  "hex": "#4d66cb",
  "rgb": {
    "r": 77,
    "g": 102,
    "b": 203
  },
  "hsl": {
    "h": 228.095,
    "s": 54.783,
    "l": 54.902
  },
  "oklch": {
    "l": 0.54416,
    "c": 0.15861,
    "h": 270
  },
  "luminance": 0.15392
}

Semantic roles & 50–950 ramp

primary

#4D66CB

secondary

#D4CA9F

accent

#C14ADE

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #4D66CB

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

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