#366ABC#366ABC

#366ABC is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.1% C 0.141 H 259.2°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#366ABC
RGB	rgb(54, 106, 188)
HSL	hsl(217, 55%, 47%)
HSV	hsv(217, 71%, 74%)
CMYK	cmyk(71.3%, 43.6%, 0%, 26.3%)
CIE-LAB	lab(45.25, 10.62, -48.26)
CIE-LCH	lch(45.25, 49.42, 282.41°)
OKLab	oklab(53.12% -0.0263 -0.138)
OKLCH	oklch(53.12% 0.141 259.2)
XYZ	xyz(15.7492, 14.7215, 49.5787)
Luminance	0.1472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366ABC #BC8836

analogous

#36ADBC #366ABC #4536BC

triadic

#366ABC #BC366A #6ABC36

tetradic

#366ABC #BC36AD #BC8836 #36BC45

square

#366ABC #BC36AD #BC8836 #36BC45

split-complementary

#366ABC #BC4536 #ADBC36

monochromatic

#1B345D #284F8C #366ABC #5E8BD1 #8EADDF

Accessibility & contrast

On white

5.32

#366ABC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#366ABC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366ABC

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366ABC	#FFFFFF	#000000	##FFFFFF
##366ABC	1.00	5.32	3.94	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4272BF

Deuteranopia (green-blind)

#2A65BA

Tritanopia (blue-blind)

#007D8A

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #366abc;
/* rgb */ color: rgb(54, 106, 188);
/* oklch */ color: oklch(53.1% 0.141 259.2);

Tailwind

colors: {
  custom: {
    50: '#7d94d1',
    500: '#366abc',
    950: '#000000',
  },
}

SCSS

$custom: #366abc;
$custom-light: #7d94d1;
$custom-dark: #000000;

JSON

{
  "hex": "#366abc",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 188
  },
  "hsl": {
    "h": 216.716,
    "s": 55.372,
    "l": 47.451
  },
  "oklch": {
    "l": 0.53122,
    "c": 0.1405,
    "h": 259.2
  },
  "luminance": 0.14723
}

Semantic roles & 50–950 ramp

primary

#366ABC

secondary

#C9AF85

accent

#A549DF

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #366ABC

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

Preview Lab → · Contrast checker → · Palette generator →