#366FBD#366FBD

#366FBD is a mid, vivid cyan. Relative luminance 0.158; OKLCH L 54.3% C 0.136 H 256.9°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#366FBD
RGB	rgb(54, 111, 189)
HSL	hsl(215, 56%, 48%)
HSV	hsv(215, 71%, 74%)
CMYK	cmyk(71.4%, 41.3%, 0%, 25.9%)
CIE-LAB	lab(46.74, 7.84, -46.45)
CIE-LCH	lch(46.74, 47.11, 279.58°)
OKLab	oklab(54.3% -0.0307 -0.1326)
OKLCH	oklch(54.3% 0.136 256.9)
XYZ	xyz(16.3877, 15.8255, 50.3252)
Luminance	0.1583 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366FBD #BD8436

analogous

#36B2BD #366FBD #4136BD

triadic

#366FBD #BD366F #6FBD36

tetradic

#366FBD #BD36B2 #BD8436 #36BD41

square

#366FBD #BD36B2 #BD8436 #36BD41

split-complementary

#366FBD #BD4136 #B2BD36

monochromatic

#1B375E #28538D #366FBD #5F8FD1 #8FB0DF

Accessibility & contrast

On white

5.04

#366FBD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#366FBD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366FBD

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366FBD	#FFFFFF	#000000	##FFFFFF
##366FBD	1.00	5.04	4.17	5.04
#FFFFFF	5.04	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A76C0

Deuteranopia (green-blind)

#3469BB

Tritanopia (blue-blind)

#00818D

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #366fbd;
/* rgb */ color: rgb(54, 111, 189);
/* oklch */ color: oklch(54.3% 0.136 256.9);

Tailwind

colors: {
  custom: {
    50: '#7d97d1',
    500: '#366fbd',
    950: '#000000',
  },
}

SCSS

$custom: #366fbd;
$custom-light: #7d97d1;
$custom-dark: #000000;

JSON

{
  "hex": "#366fbd",
  "rgb": {
    "r": 54,
    "g": 111,
    "b": 189
  },
  "hsl": {
    "h": 214.667,
    "s": 55.556,
    "l": 47.647
  },
  "oklch": {
    "l": 0.54298,
    "c": 0.13614,
    "h": 256.9
  },
  "luminance": 0.15827
}

Semantic roles & 50–950 ramp

primary

#366FBD

secondary

#C9AD85

accent

#A049DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #366FBD

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

Preview Lab → · Contrast checker → · Palette generator →