#366AA5#366AA5

#366AA5 is a mid, moderate cyan. Relative luminance 0.138; OKLCH L 51.7% C 0.109 H 253.2°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#366AA5
RGB	rgb(54, 106, 165)
HSL	hsl(212, 51%, 43%)
HSV	hsv(212, 67%, 65%)
CMYK	cmyk(67.3%, 35.8%, 0%, 35.3%)
CIE-LAB	lab(43.96, 2.22, -36.88)
CIE-LCH	lch(43.96, 36.94, 273.44°)
OKLab	oklab(51.7% -0.0316 -0.1046)
OKLCH	oklch(51.7% 0.109 253.2)
XYZ	xyz(13.4644, 13.8076, 37.5456)
Luminance	0.1381 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366AA5 #A57136

analogous

#36A1A5 #366AA5 #3936A5

triadic

#366AA5 #A5366A #6AA536

tetradic

#366AA5 #A536A1 #A57136 #36A539

square

#366AA5 #A536A1 #A57136 #36A539

split-complementary

#366AA5 #A53936 #A1A536

monochromatic

#182F49 #274C77 #366AA5 #5288C6 #80A8D5

Accessibility & contrast

On white

5.58

#366AA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#366AA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366AA5

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366AA5	#FFFFFF	#000000	##FFFFFF
##366AA5	1.00	5.58	3.76	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#506EA7

Deuteranopia (green-blind)

#4063A4

Tritanopia (blue-blind)

#007880

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #366aa5;
/* rgb */ color: rgb(54, 106, 165);
/* oklch */ color: oklch(51.7% 0.109 253.2);

Tailwind

colors: {
  custom: {
    50: '#7994c0',
    500: '#366aa5',
    950: '#000000',
  },
}

SCSS

$custom: #366aa5;
$custom-light: #7994c0;
$custom-dark: #000000;

JSON

{
  "hex": "#366aa5",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 165
  },
  "hsl": {
    "h": 211.892,
    "s": 50.685,
    "l": 42.941
  },
  "oklch": {
    "l": 0.51695,
    "c": 0.10931,
    "h": 253.2
  },
  "luminance": 0.13809
}

Semantic roles & 50–950 ramp

primary

#366AA5

secondary

#BF9E78

accent

#984EDA

background

#F7F9FB

surface

#EEF1F7

border

#C9CBD0

text

#0A0D12

muted

#7C7E81

Preview Lab

Preview with #366AA5

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

Preview Lab → · Contrast checker → · Palette generator →