#366BC2#366BC2

#366BC2 is a mid, vivid blue. Relative luminance 0.152; OKLCH L 53.7% C 0.147 H 259.8°. Best body text is #FFFFFF at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#366BC2
RGB	rgb(54, 107, 194)
HSL	hsl(217, 56%, 49%)
HSV	hsv(217, 72%, 76%)
CMYK	cmyk(72.2%, 44.8%, 0%, 23.9%)
CIE-LAB	lab(45.90, 12.20, -50.70)
CIE-LCH	lch(45.90, 52.14, 283.53°)
OKLab	oklab(53.74% -0.0261 -0.1452)
OKLCH	oklch(53.74% 0.147 259.8)
XYZ	xyz(16.5131, 15.1929, 53.0907)
Luminance	0.1520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366BC2 #C28D36

analogous

#36B1C2 #366BC2 #4736C2

triadic

#366BC2 #C2366B #6BC236

tetradic

#366BC2 #C236B1 #C28D36 #36C247

square

#366BC2 #C236B1 #C28D36 #36C247

split-complementary

#366BC2 #C24736 #B1C236

monochromatic

#1B3662 #295192 #366BC2 #628DD3 #92B0E1

Accessibility & contrast

On white

5.20

#366BC2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.04

#366BC2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366BC2

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366BC2	#FFFFFF	#000000	##FFFFFF
##366BC2	1.00	5.20	4.04	5.20
#FFFFFF	5.20	1.00	21.00	1.00
#000000	4.04	21.00	1.00	21.00
##FFFFFF	5.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F74C5

Deuteranopia (green-blind)

#2367C0

Tritanopia (blue-blind)

#007F8D

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #366bc2;
/* rgb */ color: rgb(54, 107, 194);
/* oklch */ color: oklch(53.7% 0.147 259.8);

Tailwind

colors: {
  custom: {
    50: '#7e94d5',
    500: '#366bc2',
    950: '#000000',
  },
}

SCSS

$custom: #366bc2;
$custom-light: #7e94d5;
$custom-dark: #000000;

JSON

{
  "hex": "#366bc2",
  "rgb": {
    "r": 54,
    "g": 107,
    "b": 194
  },
  "hsl": {
    "h": 217.286,
    "s": 56.452,
    "l": 48.627
  },
  "oklch": {
    "l": 0.53738,
    "c": 0.14749,
    "h": 259.8
  },
  "luminance": 0.15195
}

Semantic roles & 50–950 ramp

primary

#366BC2

secondary

#CCB288

accent

#A648E0

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366BC2

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

Preview Lab → · Contrast checker → · Palette generator →