#366FB6#366FB6

#366FB6 is a mid, vivid cyan. Relative luminance 0.155; OKLCH L 53.9% C 0.127 H 255.2°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#366FB6
RGB	rgb(54, 111, 182)
HSL	hsl(213, 54%, 46%)
HSV	hsv(213, 70%, 71%)
CMYK	cmyk(70.3%, 39%, 0%, 28.6%)
CIE-LAB	lab(46.35, 5.28, -43.03)
CIE-LCH	lch(46.35, 43.35, 276.99°)
OKLab	oklab(53.86% -0.0323 -0.1226)
OKLCH	oklch(53.86% 0.127 255.2)
XYZ	xyz(15.6462, 15.5289, 46.4197)
Luminance	0.1553 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366FB6 #B67D36

analogous

#36AFB6 #366FB6 #3D36B6

triadic

#366FB6 #B6366F #6FB636

tetradic

#366FB6 #B636AF #B67D36 #36B63D

square

#366FB6 #B636AF #B67D36 #36B63D

split-complementary

#366FB6 #B63D36 #AFB636

monochromatic

#1A3558 #285287 #366FB6 #5B8ECE #8AAFDC

Accessibility & contrast

On white

5.11

#366FB6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#366FB6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366FB6

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366FB6	#FFFFFF	#000000	##FFFFFF
##366FB6	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E74B9

Deuteranopia (green-blind)

#3B68B5

Tritanopia (blue-blind)

#00808A

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #366fb6;
/* rgb */ color: rgb(54, 111, 182);
/* oklch */ color: oklch(53.9% 0.127 255.2);

Tailwind

colors: {
  custom: {
    50: '#7c97cc',
    500: '#366fb6',
    950: '#000000',
  },
}

SCSS

$custom: #366fb6;
$custom-light: #7c97cc;
$custom-dark: #000000;

JSON

{
  "hex": "#366fb6",
  "rgb": {
    "r": 54,
    "g": 111,
    "b": 182
  },
  "hsl": {
    "h": 213.281,
    "s": 54.237,
    "l": 46.275
  },
  "oklch": {
    "l": 0.53863,
    "c": 0.12676,
    "h": 255.2
  },
  "luminance": 0.15531
}

Semantic roles & 50–950 ramp

primary

#366FB6

secondary

#C6A881

accent

#9C4ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #366FB6

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

Preview Lab → · Contrast checker → · Palette generator →