#366EC4#366EC4

#366EC4 is a mid, vivid blue. Relative luminance 0.159; OKLCH L 54.5% C 0.147 H 258.8°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#366EC4
RGB	rgb(54, 110, 196)
HSL	hsl(216, 57%, 49%)
HSV	hsv(216, 72%, 77%)
CMYK	cmyk(72.4%, 43.9%, 0%, 23.1%)
CIE-LAB	lab(46.87, 11.04, -50.29)
CIE-LCH	lch(46.87, 51.49, 282.38°)
OKLab	oklab(54.53% -0.0284 -0.1439)
OKLCH	oklch(54.53% 0.147 258.8)
XYZ	xyz(17.0574, 15.9198, 54.3877)
Luminance	0.1592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366EC4 #C48C36

analogous

#36B5C4 #366EC4 #4536C4

triadic

#366EC4 #C4366E #6EC436

tetradic

#366EC4 #C436B5 #C48C36 #36C445

square

#366EC4 #C436B5 #C48C36 #36C445

split-complementary

#366EC4 #C44536 #B5C436

monochromatic

#1C3864 #295394 #366EC4 #6390D4 #93B2E1

Accessibility & contrast

On white

5.02

#366EC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#366EC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366EC4

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366EC4	#FFFFFF	#000000	##FFFFFF
##366EC4	1.00	5.02	4.18	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4376C7

Deuteranopia (green-blind)

#2969C2

Tritanopia (blue-blind)

#00828F

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #366ec4;
/* rgb */ color: rgb(54, 110, 196);
/* oklch */ color: oklch(54.5% 0.147 258.8);

Tailwind

colors: {
  custom: {
    50: '#7f97d6',
    500: '#366ec4',
    950: '#000000',
  },
}

SCSS

$custom: #366ec4;
$custom-light: #7f97d6;
$custom-dark: #000000;

JSON

{
  "hex": "#366ec4",
  "rgb": {
    "r": 54,
    "g": 110,
    "b": 196
  },
  "hsl": {
    "h": 216.338,
    "s": 56.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.54528,
    "c": 0.1467,
    "h": 258.8
  },
  "luminance": 0.15922
}

Semantic roles & 50–950 ramp

primary

#366EC4

secondary

#CCB289

accent

#A448E0

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366EC4

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

Preview Lab → · Contrast checker → · Palette generator →