#366FB1#366FB1

#366FB1 is a mid, vivid cyan. Relative luminance 0.153; OKLCH L 53.6% C 0.120 H 253.8°. Best body text is #FFFFFF at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#366FB1
RGB	rgb(54, 111, 177)
HSL	hsl(212, 53%, 45%)
HSV	hsv(212, 69%, 69%)
CMYK	cmyk(69.5%, 37.3%, 0%, 30.6%)
CIE-LAB	lab(46.08, 3.46, -40.55)
CIE-LCH	lch(46.08, 40.70, 274.87°)
OKLab	oklab(53.56% -0.0336 -0.1153)
OKLCH	oklch(53.56% 0.12 253.8)
XYZ	xyz(15.1387, 15.3259, 43.7468)
Luminance	0.1533 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366FB1 #B17836

analogous

#36ADB1 #366FB1 #3A36B1

triadic

#366FB1 #B1366F #6FB136

tetradic

#366FB1 #B136AD #B17836 #36B13A

square

#366FB1 #B136AD #B17836 #36B13A

split-complementary

#366FB1 #B13A36 #ADB136

monochromatic

#193453 #285282 #366FB1 #588ECC #87AEDA

Accessibility & contrast

On white

5.17

#366FB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#366FB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366FB1

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366FB1	#FFFFFF	#000000	##FFFFFF
##366FB1	1.00	5.17	4.07	5.17
#FFFFFF	5.17	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5173B4

Deuteranopia (green-blind)

#3F68B0

Tritanopia (blue-blind)

#007E87

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #366fb1;
/* rgb */ color: rgb(54, 111, 177);
/* oklch */ color: oklch(53.6% 0.120 253.8);

Tailwind

colors: {
  custom: {
    50: '#7b97c8',
    500: '#366fb1',
    950: '#000000',
  },
}

SCSS

$custom: #366fb1;
$custom-light: #7b97c8;
$custom-dark: #000000;

JSON

{
  "hex": "#366fb1",
  "rgb": {
    "r": 54,
    "g": 111,
    "b": 177
  },
  "hsl": {
    "h": 212.195,
    "s": 53.247,
    "l": 45.294
  },
  "oklch": {
    "l": 0.53562,
    "c": 0.1201,
    "h": 253.8
  },
  "luminance": 0.15327
}

Semantic roles & 50–950 ramp

primary

#366FB1

secondary

#C4A47F

accent

#994BDD

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #366FB1

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

Preview Lab → · Contrast checker → · Palette generator →