#366DC7#366DC7

#366DC7 is a mid, vivid blue. Relative luminance 0.158; OKLCH L 54.5% C 0.152 H 259.8°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#366DC7
RGB	rgb(54, 109, 199)
HSL	hsl(217, 57%, 50%)
HSV	hsv(217, 73%, 78%)
CMYK	cmyk(72.9%, 45.2%, 0%, 22%)
CIE-LAB	lab(46.77, 12.78, -52.18)
CIE-LCH	lch(46.77, 53.72, 283.76°)
OKLab	oklab(54.51% -0.027 -0.1495)
OKLCH	oklch(54.51% 0.152 259.8)
XYZ	xyz(17.2950, 15.8432, 56.1683)
Luminance	0.1585 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366DC7 #C79036

analogous

#36B6C7 #366DC7 #4736C7

triadic

#366DC7 #C7366D #6DC736

tetradic

#366DC7 #C736B6 #C79036 #36C747

square

#366DC7 #C736B6 #C79036 #36C747

split-complementary

#366DC7 #C74736 #B6C736

monochromatic

#1C3867 #295397 #366DC7 #6590D5 #95B2E2

Accessibility & contrast

On white

5.04

#366DC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#366DC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DC7

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366DC7	#FFFFFF	#000000	##FFFFFF
##366DC7	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)

#3F76CA

Deuteranopia (green-blind)

#2169C5

Tritanopia (blue-blind)

#008290

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #366dc7;
/* rgb */ color: rgb(54, 109, 199);
/* oklch */ color: oklch(54.5% 0.152 259.8);

Tailwind

colors: {
  custom: {
    50: '#7f96d8',
    500: '#366dc7',
    950: '#000000',
  },
}

SCSS

$custom: #366dc7;
$custom-light: #7f96d8;
$custom-dark: #000000;

JSON

{
  "hex": "#366dc7",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 199
  },
  "hsl": {
    "h": 217.241,
    "s": 57.312,
    "l": 49.608
  },
  "oklch": {
    "l": 0.54508,
    "c": 0.1519,
    "h": 259.8
  },
  "luminance": 0.15845
}

Semantic roles & 50–950 ramp

primary

#366DC7

secondary

#CEB48B

accent

#A647E1

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366DC7

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

Preview Lab → · Contrast checker → · Palette generator →