#366CC7#366CC7

#366CC7 is a mid, vivid blue. Relative luminance 0.156; OKLCH L 54.3% C 0.153 H 260.2°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#366CC7
RGB	rgb(54, 108, 199)
HSL	hsl(218, 57%, 50%)
HSV	hsv(218, 73%, 78%)
CMYK	cmyk(72.9%, 45.7%, 0%, 22%)
CIE-LAB	lab(46.49, 13.41, -52.63)
CIE-LCH	lch(46.49, 54.31, 284.30°)
OKLab	oklab(54.29% -0.0261 -0.1508)
OKLCH	oklch(54.29% 0.153 260.2)
XYZ	xyz(17.1890, 15.6310, 56.1329)
Luminance	0.1563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366CC7 #C79136

analogous

#36B5C7 #366CC7 #4936C7

triadic

#366CC7 #C7366C #6CC736

tetradic

#366CC7 #C736B5 #C79136 #36C749

square

#366CC7 #C736B5 #C79136 #36C749

split-complementary

#366CC7 #C74936 #B5C736

monochromatic

#1C3867 #295297 #366CC7 #658FD5 #95B2E2

Accessibility & contrast

On white

5.09

#366CC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#366CC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366CC7

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366CC7	#FFFFFF	#000000	##FFFFFF
##366CC7	1.00	5.09	4.13	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D75CA

Deuteranopia (green-blind)

#1D68C5

Tritanopia (blue-blind)

#008190

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #366cc7;
/* rgb */ color: rgb(54, 108, 199);
/* oklch */ color: oklch(54.3% 0.153 260.2);

Tailwind

colors: {
  custom: {
    50: '#7f95d8',
    500: '#366cc7',
    950: '#000000',
  },
}

SCSS

$custom: #366cc7;
$custom-light: #7f95d8;
$custom-dark: #000000;

JSON

{
  "hex": "#366cc7",
  "rgb": {
    "r": 54,
    "g": 108,
    "b": 199
  },
  "hsl": {
    "h": 217.655,
    "s": 57.312,
    "l": 49.608
  },
  "oklch": {
    "l": 0.54291,
    "c": 0.15307,
    "h": 260.2
  },
  "luminance": 0.15633
}

Semantic roles & 50–950 ramp

primary

#366CC7

secondary

#CEB58B

accent

#A747E1

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366CC7

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

Preview Lab → · Contrast checker → · Palette generator →