#4366B1#4366B1

#4366B1 is a mid, vivid blue. Relative luminance 0.139; OKLCH L 52.1% C 0.125 H 263.8°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#4366B1
RGB	rgb(67, 102, 177)
HSL	hsl(221, 45%, 48%)
HSV	hsv(221, 62%, 69%)
CMYK	cmyk(62.1%, 42.4%, 0%, 30.6%)
CIE-LAB	lab(44.04, 11.38, -43.75)
CIE-LCH	lch(44.04, 45.20, 284.59°)
OKLab	oklab(52.14% -0.0136 -0.1246)
OKLCH	oklch(52.14% 0.125 263.8)
XYZ	xyz(14.9992, 13.8690, 43.4730)
Luminance	0.1387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4366B1 #B18E43

analogous

#439DB1 #4366B1 #5743B1

triadic

#4366B1 #B14366 #66B143

tetradic

#4366B1 #B1439D #B18E43 #43B157

square

#4366B1 #B1439D #B18E43 #43B157

split-complementary

#4366B1 #B15743 #9DB143

monochromatic

#213358 #324C85 #4366B1 #6A88C7 #97ABD8

Accessibility & contrast

On white

5.56

#4366B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#4366B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4366B1

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4366B1	#FFFFFF	#000000	##FFFFFF
##4366B1	1.00	5.56	3.77	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#446EB4

Deuteranopia (green-blind)

#3463AF

Tritanopia (blue-blind)

#007783

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4366b1;
/* rgb */ color: rgb(67, 102, 177);
/* oklch */ color: oklch(52.1% 0.125 263.8);

Tailwind

colors: {
  custom: {
    50: '#8191c9',
    500: '#4366b1',
    950: '#000000',
  },
}

SCSS

$custom: #4366b1;
$custom-light: #8191c9;
$custom-dark: #000000;

JSON

{
  "hex": "#4366b1",
  "rgb": {
    "r": 67,
    "g": 102,
    "b": 177
  },
  "hsl": {
    "h": 220.909,
    "s": 45.082,
    "l": 47.843
  },
  "oklch": {
    "l": 0.52141,
    "c": 0.12533,
    "h": 263.8
  },
  "luminance": 0.1387
}

Semantic roles & 50–950 ramp

primary

#4366B1

secondary

#C3B28C

accent

#AB53D5

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #4366B1

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

Preview Lab → · Contrast checker → · Palette generator →