#366FC1#366FC1

#366FC1 is a mid, vivid blue. Relative luminance 0.160; OKLCH L 54.6% C 0.142 H 257.8°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#366FC1
RGB	rgb(54, 111, 193)
HSL	hsl(215, 56%, 48%)
HSV	hsv(215, 72%, 76%)
CMYK	cmyk(72%, 42.5%, 0%, 24.3%)
CIE-LAB	lab(46.98, 9.31, -48.39)
CIE-LCH	lch(46.98, 49.28, 280.89°)
OKLab	oklab(54.55% -0.0299 -0.1383)
OKLCH	oklch(54.55% 0.142 257.8)
XYZ	xyz(16.8279, 16.0016, 52.6435)
Luminance	0.1600 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366FC1 #C18836

analogous

#36B4C1 #366FC1 #4336C1

triadic

#366FC1 #C1366F #6FC136

tetradic

#366FC1 #C136B4 #C18836 #36C143

square

#366FC1 #C136B4 #C18836 #36C143

split-complementary

#366FC1 #C14336 #B4C136

monochromatic

#1B3861 #295391 #366FC1 #6190D3 #91B2E0

Accessibility & contrast

On white

5.00

#366FC1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#366FC1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366FC1

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366FC1	#FFFFFF	#000000	##FFFFFF
##366FC1	1.00	5.00	4.20	5.00
#FFFFFF	5.00	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	5.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4776C4

Deuteranopia (green-blind)

#2F69BF

Tritanopia (blue-blind)

#00828E

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #366fc1;
/* rgb */ color: rgb(54, 111, 193);
/* oklch */ color: oklch(54.6% 0.142 257.8);

Tailwind

colors: {
  custom: {
    50: '#7e97d4',
    500: '#366fc1',
    950: '#000000',
  },
}

SCSS

$custom: #366fc1;
$custom-light: #7e97d4;
$custom-dark: #000000;

JSON

{
  "hex": "#366fc1",
  "rgb": {
    "r": 54,
    "g": 111,
    "b": 193
  },
  "hsl": {
    "h": 215.396,
    "s": 56.275,
    "l": 48.431
  },
  "oklch": {
    "l": 0.54553,
    "c": 0.14151,
    "h": 257.8
  },
  "luminance": 0.16003
}

Semantic roles & 50–950 ramp

primary

#366FC1

secondary

#CBAF88

accent

#A248E0

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366FC1

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

Preview Lab → · Contrast checker → · Palette generator →