#366399#366399

#366399 is a mid, moderate cyan. Relative luminance 0.120; OKLCH L 49.4% C 0.100 H 254.1°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#366399
RGB	rgb(54, 99, 153)
HSL	hsl(213, 48%, 41%)
HSV	hsv(213, 65%, 60%)
CMYK	cmyk(64.7%, 35.3%, 0%, 40%)
CIE-LAB	lab(41.23, 2.28, -34.07)
CIE-LCH	lch(41.23, 34.15, 273.82°)
OKLab	oklab(49.35% -0.0274 -0.0965)
OKLCH	oklch(49.35% 0.1 254.1)
XYZ	xyz(11.7308, 12.0067, 31.8301)
Luminance	0.1201 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366399 #996C36

analogous

#369499 #366399 #3A3699

triadic

#366399 #993663 #639936

tetradic

#366399 #993694 #996C36 #36993A

square

#366399 #993694 #996C36 #36993A

split-complementary

#366399 #993A36 #949936

monochromatic

#16283F #26466C #366399 #4C81C0 #7AA1D0

Accessibility & contrast

On white

6.17

#366399 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#366399 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366399

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366399	#FFFFFF	#000000	##FFFFFF
##366399	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C669B

Deuteranopia (green-blind)

#3E5D98

Tritanopia (blue-blind)

#006F77

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #366399;
/* rgb */ color: rgb(54, 99, 153);
/* oklch */ color: oklch(49.4% 0.100 254.1);

Tailwind

colors: {
  custom: {
    50: '#778fb7',
    500: '#366399',
    950: '#000000',
  },
}

SCSS

$custom: #366399;
$custom-light: #778fb7;
$custom-dark: #000000;

JSON

{
  "hex": "#366399",
  "rgb": {
    "r": 54,
    "g": 99,
    "b": 153
  },
  "hsl": {
    "h": 212.727,
    "s": 47.826,
    "l": 40.588
  },
  "oklch": {
    "l": 0.49354,
    "c": 0.10035,
    "h": 254.1
  },
  "luminance": 0.12008
}

Semantic roles & 50–950 ramp

primary

#366399

secondary

#B99972

accent

#9A50D7

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#090C11

muted

#7B7D80

Preview Lab

Preview with #366399

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

Preview Lab → · Contrast checker → · Palette generator →