#366BC8#366BC8

#366BC8 is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.1% C 0.156 H 260.7°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#366BC8
RGB	rgb(54, 107, 200)
HSL	hsl(218, 57%, 50%)
HSV	hsv(218, 73%, 78%)
CMYK	cmyk(73%, 46.5%, 0%, 21.6%)
CIE-LAB	lab(46.27, 14.42, -53.56)
CIE-LCH	lch(46.27, 55.46, 285.07°)
OKLab	oklab(54.14% -0.0251 -0.1536)
OKLCH	oklch(54.14% 0.156 260.7)
XYZ	xyz(17.2006, 15.4679, 56.7115)
Luminance	0.1547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366BC8 #C89336

analogous

#36B4C8 #366BC8 #4A36C8

triadic

#366BC8 #C8366B #6BC836

tetradic

#366BC8 #C836B4 #C89336 #36C84A

square

#366BC8 #C836B4 #C89336 #36C84A

split-complementary

#366BC8 #C84A36 #B4C836

monochromatic

#1C3768 #295198 #366BC8 #668ED6 #96B2E3

Accessibility & contrast

On white

5.13

#366BC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#366BC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366BC8

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366BC8	#FFFFFF	#000000	##FFFFFF
##366BC8	1.00	5.13	4.09	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A75CB

Deuteranopia (green-blind)

#1767C6

Tritanopia (blue-blind)

#008190

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #366bc8;
/* rgb */ color: rgb(54, 107, 200);
/* oklch */ color: oklch(54.1% 0.156 260.7);

Tailwind

colors: {
  custom: {
    50: '#8094d9',
    500: '#366bc8',
    950: '#000000',
  },
}

SCSS

$custom: #366bc8;
$custom-light: #8094d9;
$custom-dark: #000000;

JSON

{
  "hex": "#366bc8",
  "rgb": {
    "r": 54,
    "g": 107,
    "b": 200
  },
  "hsl": {
    "h": 218.219,
    "s": 57.48,
    "l": 49.804
  },
  "oklch": {
    "l": 0.54144,
    "c": 0.1556,
    "h": 260.7
  },
  "luminance": 0.1547
}

Semantic roles & 50–950 ramp

primary

#366BC8

secondary

#CEB68C

accent

#A947E1

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #366BC8

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

Preview Lab → · Contrast checker → · Palette generator →