#366FA1#366FA1

#366FA1 is a mid, moderate cyan. Relative luminance 0.147; OKLCH L 52.6% C 0.099 H 247.5°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#366FA1
RGB	rgb(54, 111, 161)
HSL	hsl(208, 50%, 42%)
HSV	hsv(208, 66%, 63%)
CMYK	cmyk(66.5%, 31.1%, 0%, 36.9%)
CIE-LAB	lab(45.26, -2.28, -32.47)
CIE-LCH	lch(45.26, 32.55, 265.99°)
OKLab	oklab(52.65% -0.0381 -0.0917)
OKLCH	oklch(52.65% 0.099 247.5)
XYZ	xyz(13.6364, 14.7250, 35.8349)
Luminance	0.1473 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366FA1 #A16836

analogous

#36A19D #366FA1 #363AA1

triadic

#366FA1 #A1366F #6FA136

tetradic

#366FA1 #9D36A1 #A16836 #3AA136

square

#366FA1 #9D36A1 #A16836 #3AA136

split-complementary

#366FA1 #A1363A #A19D36

monochromatic

#173045 #274F73 #366FA1 #508EC4 #7EACD4

Accessibility & contrast

On white

5.32

#366FA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#366FA1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366FA1

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366FA1	#FFFFFF	#000000	##FFFFFF
##366FA1	1.00	5.32	3.95	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5971A3

Deuteranopia (green-blind)

#4A66A0

Tritanopia (blue-blind)

#007B81

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #366fa1;
/* rgb */ color: rgb(54, 111, 161);
/* oklch */ color: oklch(52.6% 0.099 247.5);

Tailwind

colors: {
  custom: {
    50: '#7898bd',
    500: '#366fa1',
    950: '#000000',
  },
}

SCSS

$custom: #366fa1;
$custom-light: #7898bd;
$custom-dark: #000000;

JSON

{
  "hex": "#366fa1",
  "rgb": {
    "r": 54,
    "g": 111,
    "b": 161
  },
  "hsl": {
    "h": 208.037,
    "s": 49.767,
    "l": 42.157
  },
  "oklch": {
    "l": 0.52648,
    "c": 0.09933,
    "h": 247.5
  },
  "luminance": 0.14726
}

Semantic roles & 50–950 ramp

primary

#366FA1

secondary

#BD9776

accent

#8F4FD9

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #366FA1

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

Preview Lab → · Contrast checker → · Palette generator →