#366FBA#366FBA

#366FBA is a mid, vivid cyan. Relative luminance 0.157; OKLCH L 54.1% C 0.132 H 256.3°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#366FBA
RGB	rgb(54, 111, 186)
HSL	hsl(214, 55%, 47%)
HSV	hsv(214, 71%, 73%)
CMYK	cmyk(71%, 40.3%, 0%, 27.1%)
CIE-LAB	lab(46.57, 6.74, -44.99)
CIE-LCH	lch(46.57, 45.49, 278.52°)
OKLab	oklab(54.11% -0.0314 -0.1283)
OKLCH	oklch(54.11% 0.132 256.3)
XYZ	xyz(16.0654, 15.6966, 48.6279)
Luminance	0.1570 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366FBA #BA8136

analogous

#36B1BA #366FBA #3F36BA

triadic

#366FBA #BA366F #6FBA36

tetradic

#366FBA #BA36B1 #BA8136 #36BA3F

square

#366FBA #BA36B1 #BA8136 #36BA3F

split-complementary

#366FBA #BA3F36 #B1BA36

monochromatic

#1A365B #28538B #366FBA #5D8FD0 #8DB0DE

Accessibility & contrast

On white

5.07

#366FBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#366FBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366FBA

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366FBA	#FFFFFF	#000000	##FFFFFF
##366FBA	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C75BD

Deuteranopia (green-blind)

#3769B8

Tritanopia (blue-blind)

#00808B

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #366fba;
/* rgb */ color: rgb(54, 111, 186);
/* oklch */ color: oklch(54.1% 0.132 256.3);

Tailwind

colors: {
  custom: {
    50: '#7d97cf',
    500: '#366fba',
    950: '#000000',
  },
}

SCSS

$custom: #366fba;
$custom-light: #7d97cf;
$custom-dark: #000000;

JSON

{
  "hex": "#366fba",
  "rgb": {
    "r": 54,
    "g": 111,
    "b": 186
  },
  "hsl": {
    "h": 214.091,
    "s": 55,
    "l": 47.059
  },
  "oklch": {
    "l": 0.5411,
    "c": 0.13212,
    "h": 256.3
  },
  "luminance": 0.15698
}

Semantic roles & 50–950 ramp

primary

#366FBA

secondary

#C8AB84

accent

#9E49DE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #366FBA

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

Preview Lab → · Contrast checker → · Palette generator →