#366CC8#366CC8

#366CC8 is a mid, vivid blue. Relative luminance 0.157; OKLCH L 54.4% C 0.154 H 260.3°. Best body text is #FFFFFF at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#366CC8
RGB	rgb(54, 108, 200)
HSL	hsl(218, 57%, 50%)
HSV	hsv(218, 73%, 78%)
CMYK	cmyk(73%, 46%, 0%, 21.6%)
CIE-LAB	lab(46.55, 13.78, -53.11)
CIE-LCH	lch(46.55, 54.87, 284.55°)
OKLab	oklab(54.36% -0.0259 -0.1522)
OKLCH	oklch(54.36% 0.154 260.3)
XYZ	xyz(17.3054, 15.6776, 56.7464)
Luminance	0.1568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366CC8 #C89236

analogous

#36B5C8 #366CC8 #4936C8

triadic

#366CC8 #C8366C #6CC836

tetradic

#366CC8 #C836B5 #C89236 #36C849

square

#366CC8 #C836B5 #C89236 #36C849

split-complementary

#366CC8 #C84936 #B5C836

monochromatic

#1C3868 #295298 #366CC8 #668FD6 #96B2E3

Accessibility & contrast

On white

5.08

#366CC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#366CC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366CC8

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366CC8	#FFFFFF	#000000	##FFFFFF
##366CC8	1.00	5.08	4.14	5.08
#FFFFFF	5.08	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C75CB

Deuteranopia (green-blind)

#1B68C6

Tritanopia (blue-blind)

#008290

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #366cc8;
/* rgb */ color: rgb(54, 108, 200);
/* oklch */ color: oklch(54.4% 0.154 260.3);

Tailwind

colors: {
  custom: {
    50: '#8095d9',
    500: '#366cc8',
    950: '#000000',
  },
}

SCSS

$custom: #366cc8;
$custom-light: #8095d9;
$custom-dark: #000000;

JSON

{
  "hex": "#366cc8",
  "rgb": {
    "r": 54,
    "g": 108,
    "b": 200
  },
  "hsl": {
    "h": 217.808,
    "s": 57.48,
    "l": 49.804
  },
  "oklch": {
    "l": 0.54359,
    "c": 0.15442,
    "h": 260.3
  },
  "luminance": 0.1568
}

Semantic roles & 50–950 ramp

primary

#366CC8

secondary

#CEB58C

accent

#A847E1

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #366CC8

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

Preview Lab → · Contrast checker → · Palette generator →