#366DA1#366DA1

#366DA1 is a mid, moderate cyan. Relative luminance 0.143; OKLCH L 52.2% C 0.101 H 249.2°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#366DA1
RGB	rgb(54, 109, 161)
HSL	hsl(209, 50%, 42%)
HSV	hsv(209, 66%, 63%)
CMYK	cmyk(66.5%, 32.3%, 0%, 36.9%)
CIE-LAB	lab(44.65, -1.06, -33.42)
CIE-LCH	lch(44.65, 33.44, 268.18°)
OKLab	oklab(52.17% -0.0359 -0.0945)
OKLCH	oklch(52.17% 0.101 249.2)
XYZ	xyz(13.4206, 14.2934, 35.7629)
Luminance	0.1429 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366DA1 #A16A36

analogous

#36A1A0 #366DA1 #3638A1

triadic

#366DA1 #A1366D #6DA136

tetradic

#366DA1 #A036A1 #A16A36 #38A136

square

#366DA1 #A036A1 #A16A36 #38A136

split-complementary

#366DA1 #A13638 #A1A036

monochromatic

#172F45 #274E73 #366DA1 #508CC4 #7EAAD4

Accessibility & contrast

On white

5.44

#366DA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#366DA1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DA1

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366DA1	#FFFFFF	#000000	##FFFFFF
##366DA1	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#566FA3

Deuteranopia (green-blind)

#4865A0

Tritanopia (blue-blind)

#007980

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #366da1;
/* rgb */ color: rgb(54, 109, 161);
/* oklch */ color: oklch(52.2% 0.101 249.2);

Tailwind

colors: {
  custom: {
    50: '#7896bd',
    500: '#366da1',
    950: '#000000',
  },
}

SCSS

$custom: #366da1;
$custom-light: #7896bd;
$custom-dark: #000000;

JSON

{
  "hex": "#366da1",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 161
  },
  "hsl": {
    "h": 209.159,
    "s": 49.767,
    "l": 42.157
  },
  "oklch": {
    "l": 0.52172,
    "c": 0.10113,
    "h": 249.2
  },
  "luminance": 0.14295
}

Semantic roles & 50–950 ramp

primary

#366DA1

secondary

#BD9876

accent

#924FD9

background

#F7F9FB

surface

#EEF1F6

border

#C9CBD0

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #366DA1

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

Preview Lab → · Contrast checker → · Palette generator →