#366EBC#366EBC

#366EBC is a mid, vivid cyan. Relative luminance 0.156; OKLCH L 54.0% C 0.136 H 257.2°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#366EBC
RGB	rgb(54, 110, 188)
HSL	hsl(215, 55%, 47%)
HSV	hsv(215, 71%, 74%)
CMYK	cmyk(71.3%, 41.5%, 0%, 26.3%)
CIE-LAB	lab(46.40, 8.10, -46.43)
CIE-LCH	lch(46.40, 47.13, 279.89°)
OKLab	oklab(54.01% -0.03 -0.1326)
OKLCH	oklch(54.01% 0.136 257.2)
XYZ	xyz(16.1710, 15.5652, 49.7193)
Luminance	0.1557 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366EBC #BC8436

analogous

#36B1BC #366EBC #4136BC

triadic

#366EBC #BC366E #6EBC36

tetradic

#366EBC #BC36B1 #BC8436 #36BC41

square

#366EBC #BC36B1 #BC8436 #36BC41

split-complementary

#366EBC #BC4136 #B1BC36

monochromatic

#1B365D #28528C #366EBC #5E8ED1 #8EB0DF

Accessibility & contrast

On white

5.11

#366EBC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#366EBC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366EBC

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366EBC	#FFFFFF	#000000	##FFFFFF
##366EBC	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4975BF

Deuteranopia (green-blind)

#3368BA

Tritanopia (blue-blind)

#00808C

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #366ebc;
/* rgb */ color: rgb(54, 110, 188);
/* oklch */ color: oklch(54.0% 0.136 257.2);

Tailwind

colors: {
  custom: {
    50: '#7d97d0',
    500: '#366ebc',
    950: '#000000',
  },
}

SCSS

$custom: #366ebc;
$custom-light: #7d97d0;
$custom-dark: #000000;

JSON

{
  "hex": "#366ebc",
  "rgb": {
    "r": 54,
    "g": 110,
    "b": 188
  },
  "hsl": {
    "h": 214.925,
    "s": 55.372,
    "l": 47.451
  },
  "oklch": {
    "l": 0.54011,
    "c": 0.13592,
    "h": 257.2
  },
  "luminance": 0.15567
}

Semantic roles & 50–950 ramp

primary

#366EBC

secondary

#C9AD85

accent

#A049DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #366EBC

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

Preview Lab → · Contrast checker → · Palette generator →