#366CCD#366CCD

#366CCD is a mid, vivid blue. Relative luminance 0.159; OKLCH L 54.7% C 0.161 H 261.0°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#366CCD
RGB	rgb(54, 108, 205)
HSL	hsl(219, 60%, 51%)
HSV	hsv(219, 74%, 80%)
CMYK	cmyk(73.7%, 47.3%, 0%, 19.6%)
CIE-LAB	lab(46.86, 15.63, -55.47)
CIE-LCH	lch(46.86, 57.63, 285.74°)
OKLab	oklab(54.7% -0.0251 -0.1592)
OKLCH	oklch(54.7% 0.161 261)
XYZ	xyz(17.8994, 15.9152, 59.8744)
Luminance	0.1592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366CCD #CD9736

analogous

#36B7CD #366CCD #4B36CD

triadic

#366CCD #CD366C #6CCD36

tetradic

#366CCD #CD36B7 #CD9736 #36CD4B

square

#366CCD #CD36B7 #CD9736 #36CD4B

split-complementary

#366CCD #CD4B36 #B7CD36

monochromatic

#1B396D #27529E #366CCD #6790D9 #98B4E5

Accessibility & contrast

On white

5.02

#366CCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#366CCD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366CCD

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366CCD	#FFFFFF	#000000	##FFFFFF
##366CCD	1.00	5.02	4.18	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3776D1

Deuteranopia (green-blind)

#0B69CB

Tritanopia (blue-blind)

#008392

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #366ccd;
/* rgb */ color: rgb(54, 108, 205);
/* oklch */ color: oklch(54.7% 0.161 261.0);

Tailwind

colors: {
  custom: {
    50: '#8195dd',
    500: '#366ccd',
    950: '#000000',
  },
}

SCSS

$custom: #366ccd;
$custom-light: #8195dd;
$custom-dark: #000000;

JSON

{
  "hex": "#366ccd",
  "rgb": {
    "r": 54,
    "g": 108,
    "b": 205
  },
  "hsl": {
    "h": 218.543,
    "s": 60.159,
    "l": 50.784
  },
  "oklch": {
    "l": 0.54702,
    "c": 0.16115,
    "h": 261
  },
  "luminance": 0.15917
}

Semantic roles & 50–950 ramp

primary

#366CCD

secondary

#D1B98E

accent

#AB44E3

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #366CCD

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

Preview Lab → · Contrast checker → · Palette generator →