#366ACD#366ACD

#366ACD is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.3% C 0.164 H 261.8°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#366ACD
RGB	rgb(54, 106, 205)
HSL	hsl(219, 60%, 51%)
HSV	hsv(219, 74%, 80%)
CMYK	cmyk(73.7%, 48.3%, 0%, 19.6%)
CIE-LAB	lab(46.31, 16.90, -56.36)
CIE-LCH	lch(46.31, 58.84, 286.70°)
OKLab	oklab(54.28% -0.0234 -0.1618)
OKLCH	oklch(54.28% 0.164 261.8)
XYZ	xyz(17.6908, 15.4982, 59.8049)
Luminance	0.1550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366ACD #CD9936

analogous

#36B5CD #366ACD #4D36CD

triadic

#366ACD #CD366A #6ACD36

tetradic

#366ACD #CD36B5 #CD9936 #36CD4D

square

#366ACD #CD36B5 #CD9936 #36CD4D

split-complementary

#366ACD #CD4D36 #B5CD36

monochromatic

#1B386D #27509E #366ACD #678ED9 #98B3E5

Accessibility & contrast

On white

5.12

#366ACD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#366ACD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366ACD

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366ACD	#FFFFFF	#000000	##FFFFFF
##366ACD	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3275D1

Deuteranopia (green-blind)

#0067CB

Tritanopia (blue-blind)

#008292

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #366acd;
/* rgb */ color: rgb(54, 106, 205);
/* oklch */ color: oklch(54.3% 0.164 261.8);

Tailwind

colors: {
  custom: {
    50: '#8194dd',
    500: '#366acd',
    950: '#000000',
  },
}

SCSS

$custom: #366acd;
$custom-light: #8194dd;
$custom-dark: #000000;

JSON

{
  "hex": "#366acd",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 205
  },
  "hsl": {
    "h": 219.338,
    "s": 60.159,
    "l": 50.784
  },
  "oklch": {
    "l": 0.54277,
    "c": 0.16353,
    "h": 261.8
  },
  "luminance": 0.155
}

Semantic roles & 50–950 ramp

primary

#366ACD

secondary

#D1BA8E

accent

#AD44E3

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #366ACD

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

Preview Lab → · Contrast checker → · Palette generator →