#4366B3#4366B3

#4366B3 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.3% C 0.128 H 264.1°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#4366B3
RGB	rgb(67, 102, 179)
HSL	hsl(221, 46%, 48%)
HSV	hsv(221, 63%, 70%)
CMYK	cmyk(62.6%, 43%, 0%, 29.8%)
CIE-LAB	lab(44.16, 12.09, -44.73)
CIE-LCH	lch(44.16, 46.33, 285.12°)
OKLab	oklab(52.27% -0.0132 -0.1275)
OKLCH	oklch(52.27% 0.128 264.1)
XYZ	xyz(15.2000, 13.9494, 44.5306)
Luminance	0.1395 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4366B3 #B39043

analogous

#439EB3 #4366B3 #5843B3

triadic

#4366B3 #B34366 #66B343

tetradic

#4366B3 #B3439E #B39043 #43B358

square

#4366B3 #B3439E #B39043 #43B358

split-complementary

#4366B3 #B35843 #9EB343

monochromatic

#22335A #324D86 #4366B3 #6B88C8 #98ACD8

Accessibility & contrast

On white

5.54

#4366B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#4366B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4366B3

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4366B3	#FFFFFF	#000000	##FFFFFF
##4366B3	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#436EB6

Deuteranopia (green-blind)

#3264B1

Tritanopia (blue-blind)

#007784

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4366b3;
/* rgb */ color: rgb(67, 102, 179);
/* oklch */ color: oklch(52.3% 0.128 264.1);

Tailwind

colors: {
  custom: {
    50: '#8191ca',
    500: '#4366b3',
    950: '#000000',
  },
}

SCSS

$custom: #4366b3;
$custom-light: #8191ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4366b3",
  "rgb": {
    "r": 67,
    "g": 102,
    "b": 179
  },
  "hsl": {
    "h": 221.25,
    "s": 45.528,
    "l": 48.235
  },
  "oklch": {
    "l": 0.52268,
    "c": 0.12817,
    "h": 264.1
  },
  "luminance": 0.13951
}

Semantic roles & 50–950 ramp

primary

#4366B3

secondary

#C4B38D

accent

#AC53D5

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #4366B3

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

Preview Lab → · Contrast checker → · Palette generator →