#366AC0#366AC0

#366AC0 is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.4% C 0.146 H 259.9°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#366AC0
RGB	rgb(54, 106, 192)
HSL	hsl(217, 56%, 48%)
HSV	hsv(217, 72%, 75%)
CMYK	cmyk(71.9%, 44.8%, 0%, 24.7%)
CIE-LAB	lab(45.49, 12.09, -50.19)
CIE-LCH	lch(45.49, 51.63, 283.55°)
OKLab	oklab(53.39% -0.0255 -0.1437)
OKLCH	oklch(53.39% 0.146 259.9)
XYZ	xyz(16.1864, 14.8964, 51.8812)
Luminance	0.1490 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366AC0 #C08C36

analogous

#36AFC0 #366AC0 #4736C0

triadic

#366AC0 #C0366A #6AC036

tetradic

#366AC0 #C036AF #C08C36 #36C047

square

#366AC0 #C036AF #C08C36 #36C047

split-complementary

#366AC0 #C04736 #AFC036

monochromatic

#1B3560 #295090 #366AC0 #618CD2 #90AEE0

Accessibility & contrast

On white

5.28

#366AC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#366AC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366AC0

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366AC0	#FFFFFF	#000000	##FFFFFF
##366AC0	1.00	5.28	3.98	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F72C3

Deuteranopia (green-blind)

#2466BE

Tritanopia (blue-blind)

#007E8B

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #366ac0;
/* rgb */ color: rgb(54, 106, 192);
/* oklch */ color: oklch(53.4% 0.146 259.9);

Tailwind

colors: {
  custom: {
    50: '#7e94d3',
    500: '#366ac0',
    950: '#000000',
  },
}

SCSS

$custom: #366ac0;
$custom-light: #7e94d3;
$custom-dark: #000000;

JSON

{
  "hex": "#366ac0",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 192
  },
  "hsl": {
    "h": 217.391,
    "s": 56.098,
    "l": 48.235
  },
  "oklch": {
    "l": 0.53386,
    "c": 0.14594,
    "h": 259.9
  },
  "luminance": 0.14898
}

Semantic roles & 50–950 ramp

primary

#366AC0

secondary

#CBB187

accent

#A648DF

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366AC0

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

Preview Lab → · Contrast checker → · Palette generator →