#366FA6#366FA6

#366FA6 is a mid, moderate cyan. Relative luminance 0.149; OKLCH L 52.9% C 0.106 H 249.8°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#366FA6
RGB	rgb(54, 111, 166)
HSL	hsl(209, 51%, 43%)
HSV	hsv(209, 67%, 65%)
CMYK	cmyk(67.5%, 33.1%, 0%, 34.9%)
CIE-LAB	lab(45.50, -0.50, -35.02)
CIE-LCH	lch(45.50, 35.03, 269.18°)
OKLab	oklab(52.93% -0.0366 -0.0992)
OKLCH	oklch(52.93% 0.106 249.8)
XYZ	xyz(14.0861, 14.9049, 38.2036)
Luminance	0.1491 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366FA6 #A66D36

analogous

#36A6A5 #366FA6 #3637A6

triadic

#366FA6 #A6366F #6FA636

tetradic

#366FA6 #A536A6 #A66D36 #37A636

square

#366FA6 #A536A6 #A66D36 #37A636

split-complementary

#366FA6 #A63637 #A6A536

monochromatic

#18314A #275078 #366FA6 #528EC7 #81ACD6

Accessibility & contrast

On white

5.27

#366FA6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#366FA6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366FA6

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366FA6	#FFFFFF	#000000	##FFFFFF
##366FA6	1.00	5.27	3.98	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5772A8

Deuteranopia (green-blind)

#4767A5

Tritanopia (blue-blind)

#007C83

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #366fa6;
/* rgb */ color: rgb(54, 111, 166);
/* oklch */ color: oklch(52.9% 0.106 249.8);

Tailwind

colors: {
  custom: {
    50: '#7998c0',
    500: '#366fa6',
    950: '#000000',
  },
}

SCSS

$custom: #366fa6;
$custom-light: #7998c0;
$custom-dark: #000000;

JSON

{
  "hex": "#366fa6",
  "rgb": {
    "r": 54,
    "g": 111,
    "b": 166
  },
  "hsl": {
    "h": 209.464,
    "s": 50.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.52925,
    "c": 0.10569,
    "h": 249.8
  },
  "luminance": 0.14906
}

Semantic roles & 50–950 ramp

primary

#366FA6

secondary

#BF9B79

accent

#934DDA

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #366FA6

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

Preview Lab → · Contrast checker → · Palette generator →