#4366B5#4366B5

#4366B5 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.4% C 0.131 H 264.4°. Best body text is #FFFFFF at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#4366B5
RGB	rgb(67, 102, 181)
HSL	hsl(222, 46%, 49%)
HSV	hsv(222, 63%, 71%)
CMYK	cmyk(63%, 43.6%, 0%, 29%)
CIE-LAB	lab(44.28, 12.79, -45.71)
CIE-LCH	lch(44.28, 47.47, 285.63°)
OKLab	oklab(52.4% -0.0129 -0.1304)
OKLCH	oklch(52.4% 0.131 264.4)
XYZ	xyz(15.4037, 14.0308, 45.6036)
Luminance	0.1403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4366B5 #B59243

analogous

#439FB5 #4366B5 #5943B5

triadic

#4366B5 #B54366 #66B543

tetradic

#4366B5 #B5439F #B59243 #43B559

square

#4366B5 #B5439F #B59243 #43B559

split-complementary

#4366B5 #B55943 #9FB543

monochromatic

#22345C #324D88 #4366B5 #6C89C9 #99ADD9

Accessibility & contrast

On white

5.52

#4366B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#4366B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4366B5

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4366B5	#FFFFFF	#000000	##FFFFFF
##4366B5	1.00	5.52	3.81	5.52
#FFFFFF	5.52	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#426EB8

Deuteranopia (green-blind)

#3064B3

Tritanopia (blue-blind)

#007884

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #4366b5;
/* rgb */ color: rgb(67, 102, 181);
/* oklch */ color: oklch(52.4% 0.131 264.4);

Tailwind

colors: {
  custom: {
    50: '#8291cb',
    500: '#4366b5',
    950: '#000000',
  },
}

SCSS

$custom: #4366b5;
$custom-light: #8291cb;
$custom-dark: #000000;

JSON

{
  "hex": "#4366b5",
  "rgb": {
    "r": 67,
    "g": 102,
    "b": 181
  },
  "hsl": {
    "h": 221.579,
    "s": 45.968,
    "l": 48.627
  },
  "oklch": {
    "l": 0.52395,
    "c": 0.13099,
    "h": 264.4
  },
  "luminance": 0.14032
}

Semantic roles & 50–950 ramp

primary

#4366B5

secondary

#C5B48F

accent

#AD52D6

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #4366B5

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

Preview Lab → · Contrast checker → · Palette generator →