#366C99#366C99

#366C99 is a mid, moderate cyan. Relative luminance 0.138; OKLCH L 51.5% C 0.092 H 246.0°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#366C99
RGB	rgb(54, 108, 153)
HSL	hsl(207, 48%, 41%)
HSV	hsv(207, 65%, 60%)
CMYK	cmyk(64.7%, 29.4%, 0%, 40%)
CIE-LAB	lab(43.96, -3.28, -29.78)
CIE-LCH	lch(43.96, 29.96, 263.72°)
OKLab	oklab(51.5% -0.0373 -0.0839)
OKLCH	oklch(51.5% 0.092 246)
XYZ	xyz(12.6315, 13.8081, 32.1304)
Luminance	0.1381 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366C99 #996336

analogous

#369994 #366C99 #363A99

triadic

#366C99 #99366C #6C9936

tetradic

#366C99 #943699 #996336 #3A9936

square

#366C99 #943699 #996336 #3A9936

split-complementary

#366C99 #99363A #999436

monochromatic

#162C3F #264C6C #366C99 #4C8BC0 #7AA9D0

Accessibility & contrast

On white

5.58

#366C99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#366C99 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366C99

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366C99	#FFFFFF	#000000	##FFFFFF
##366C99	1.00	5.58	3.76	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#586D9B

Deuteranopia (green-blind)

#4B6498

Tritanopia (blue-blind)

#00777C

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #366c99;
/* rgb */ color: rgb(54, 108, 153);
/* oklch */ color: oklch(51.5% 0.092 246.0);

Tailwind

colors: {
  custom: {
    50: '#7795b7',
    500: '#366c99',
    950: '#000000',
  },
}

SCSS

$custom: #366c99;
$custom-light: #7795b7;
$custom-dark: #000000;

JSON

{
  "hex": "#366c99",
  "rgb": {
    "r": 54,
    "g": 108,
    "b": 153
  },
  "hsl": {
    "h": 207.273,
    "s": 47.826,
    "l": 40.588
  },
  "oklch": {
    "l": 0.51497,
    "c": 0.09188,
    "h": 246
  },
  "luminance": 0.13809
}

Semantic roles & 50–950 ramp

primary

#366C99

secondary

#B99272

accent

#8E50D7

background

#F7F9FB

surface

#EEF1F6

border

#C9CBD0

text

#090D11

muted

#7B7E80

Preview Lab

Preview with #366C99

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

Preview Lab → · Contrast checker → · Palette generator →