#366B8D#366B8D

#366B8D is a mid, moderate cyan. Relative luminance 0.132; OKLCH L 50.6% C 0.078 H 239.0°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#366B8D
RGB	rgb(54, 107, 141)
HSL	hsl(203, 45%, 38%)
HSV	hsv(203, 62%, 55%)
CMYK	cmyk(61.7%, 24.1%, 0%, 44.7%)
CIE-LAB	lab(43.10, -6.81, -23.97)
CIE-LCH	lch(43.10, 24.92, 254.13°)
OKLab	oklab(50.64% -0.0403 -0.0672)
OKLCH	oklch(50.64% 0.078 239)
XYZ	xyz(11.5849, 13.2216, 27.1357)
Luminance	0.1322 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366B8D #8D5836

analogous

#368D83 #366B8D #36408D

triadic

#366B8D #8D366B #6B8D36

tetradic

#366B8D #83368D #8D5836 #408D36

square

#366B8D #83368D #8D5836 #408D36

split-complementary

#366B8D #8D3640 #8D8336

monochromatic

#142834 #254961 #366B8D #478CB9 #74A8CA

Accessibility & contrast

On white

5.76

#366B8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#366B8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366B8D

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366B8D	#FFFFFF	#000000	##FFFFFF
##366B8D	1.00	5.76	3.64	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B6B8F

Deuteranopia (green-blind)

#50628C

Tritanopia (blue-blind)

#007476

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #366b8d;
/* rgb */ color: rgb(54, 107, 141);
/* oklch */ color: oklch(50.6% 0.078 239.0);

Tailwind

colors: {
  custom: {
    50: '#7595ae',
    500: '#366b8d',
    950: '#000000',
  },
}

SCSS

$custom: #366b8d;
$custom-light: #7595ae;
$custom-dark: #000000;

JSON

{
  "hex": "#366b8d",
  "rgb": {
    "r": 54,
    "g": 107,
    "b": 141
  },
  "hsl": {
    "h": 203.448,
    "s": 44.615,
    "l": 38.235
  },
  "oklch": {
    "l": 0.50635,
    "c": 0.07834,
    "h": 239
  },
  "luminance": 0.13223
}

Semantic roles & 50–950 ramp

primary

#366B8D

secondary

#B2886D

accent

#8653D4

background

#F7F9FA

surface

#EDF1F4

border

#C8CBCE

text

#090D10

muted

#7B7E7F

Preview Lab

Preview with #366B8D

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

Preview Lab → · Contrast checker → · Palette generator →