#366DC2#366DC2

#366DC2 is a mid, vivid blue. Relative luminance 0.156; OKLCH L 54.2% C 0.145 H 258.9°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#366DC2
RGB	rgb(54, 109, 194)
HSL	hsl(216, 56%, 49%)
HSV	hsv(216, 72%, 76%)
CMYK	cmyk(72.2%, 43.8%, 0%, 23.9%)
CIE-LAB	lab(46.47, 10.93, -49.79)
CIE-LCH	lch(46.47, 50.97, 282.39°)
OKLab	oklab(54.18% -0.0279 -0.1424)
OKLCH	oklch(54.18% 0.145 258.9)
XYZ	xyz(16.7240, 15.6148, 53.1610)
Luminance	0.1562 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366DC2 #C28B36

analogous

#36B3C2 #366DC2 #4536C2

triadic

#366DC2 #C2366D #6DC236

tetradic

#366DC2 #C236B3 #C28B36 #36C245

square

#366DC2 #C236B3 #C28B36 #36C245

split-complementary

#366DC2 #C24536 #B3C236

monochromatic

#1B3762 #295292 #366DC2 #628ED3 #92B1E1

Accessibility & contrast

On white

5.09

#366DC2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#366DC2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DC2

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366DC2	#FFFFFF	#000000	##FFFFFF
##366DC2	1.00	5.09	4.12	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4375C5

Deuteranopia (green-blind)

#2968C0

Tritanopia (blue-blind)

#00818E

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #366dc2;
/* rgb */ color: rgb(54, 109, 194);
/* oklch */ color: oklch(54.2% 0.145 258.9);

Tailwind

colors: {
  custom: {
    50: '#7e96d5',
    500: '#366dc2',
    950: '#000000',
  },
}

SCSS

$custom: #366dc2;
$custom-light: #7e96d5;
$custom-dark: #000000;

JSON

{
  "hex": "#366dc2",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 194
  },
  "hsl": {
    "h": 216.429,
    "s": 56.452,
    "l": 48.627
  },
  "oklch": {
    "l": 0.54177,
    "c": 0.14515,
    "h": 258.9
  },
  "luminance": 0.15617
}

Semantic roles & 50–950 ramp

primary

#366DC2

secondary

#CCB188

accent

#A448E0

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366DC2

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

Preview Lab → · Contrast checker → · Palette generator →