#366DC0#366DC0

#366DC0 is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.0% C 0.142 H 258.6°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#366DC0
RGB	rgb(54, 109, 192)
HSL	hsl(216, 56%, 48%)
HSV	hsv(216, 72%, 75%)
CMYK	cmyk(71.9%, 43.2%, 0%, 24.7%)
CIE-LAB	lab(46.35, 10.20, -48.82)
CIE-LCH	lch(46.35, 49.88, 281.80°)
OKLab	oklab(54.05% -0.0283 -0.1396)
OKLCH	oklch(54.05% 0.142 258.6)
XYZ	xyz(16.5009, 15.5255, 51.9860)
Luminance	0.1553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366DC0 #C08936

analogous

#36B2C0 #366DC0 #4436C0

triadic

#366DC0 #C0366D #6DC036

tetradic

#366DC0 #C036B2 #C08936 #36C044

square

#366DC0 #C036B2 #C08936 #36C044

split-complementary

#366DC0 #C04436 #B2C036

monochromatic

#1B3760 #295290 #366DC0 #618ED2 #90B0E0

Accessibility & contrast

On white

5.12

#366DC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#366DC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DC0

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366DC0	#FFFFFF	#000000	##FFFFFF
##366DC0	1.00	5.12	4.11	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4475C3

Deuteranopia (green-blind)

#2C68BE

Tritanopia (blue-blind)

#00808D

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #366dc0;
/* rgb */ color: rgb(54, 109, 192);
/* oklch */ color: oklch(54.0% 0.142 258.6);

Tailwind

colors: {
  custom: {
    50: '#7e96d3',
    500: '#366dc0',
    950: '#000000',
  },
}

SCSS

$custom: #366dc0;
$custom-light: #7e96d3;
$custom-dark: #000000;

JSON

{
  "hex": "#366dc0",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 192
  },
  "hsl": {
    "h": 216.087,
    "s": 56.098,
    "l": 48.235
  },
  "oklch": {
    "l": 0.54046,
    "c": 0.14245,
    "h": 258.6
  },
  "luminance": 0.15527
}

Semantic roles & 50–950 ramp

primary

#366DC0

secondary

#CBB087

accent

#A348DF

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366DC0

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

Preview Lab → · Contrast checker → · Palette generator →