#366CC2#366CC2

#366CC2 is a mid, vivid blue. Relative luminance 0.154; OKLCH L 54.0% C 0.146 H 259.4°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#366CC2
RGB	rgb(54, 108, 194)
HSL	hsl(217, 56%, 49%)
HSV	hsv(217, 72%, 76%)
CMYK	cmyk(72.2%, 44.3%, 0%, 23.9%)
CIE-LAB	lab(46.18, 11.57, -50.24)
CIE-LCH	lch(46.18, 51.56, 282.96°)
OKLab	oklab(53.96% -0.027 -0.1438)
OKLCH	oklch(53.96% 0.146 259.4)
XYZ	xyz(16.6180, 15.4026, 53.1257)
Luminance	0.1540 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366CC2 #C28C36

analogous

#36B2C2 #366CC2 #4636C2

triadic

#366CC2 #C2366C #6CC236

tetradic

#366CC2 #C236B2 #C28C36 #36C246

square

#366CC2 #C236B2 #C28C36 #36C246

split-complementary

#366CC2 #C24636 #B2C236

monochromatic

#1B3762 #295192 #366CC2 #628ED3 #92B0E1

Accessibility & contrast

On white

5.15

#366CC2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#366CC2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366CC2

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366CC2	#FFFFFF	#000000	##FFFFFF
##366CC2	1.00	5.15	4.08	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.08	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4174C5

Deuteranopia (green-blind)

#2667C0

Tritanopia (blue-blind)

#00808D

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #366cc2;
/* rgb */ color: rgb(54, 108, 194);
/* oklch */ color: oklch(54.0% 0.146 259.4);

Tailwind

colors: {
  custom: {
    50: '#7e95d5',
    500: '#366cc2',
    950: '#000000',
  },
}

SCSS

$custom: #366cc2;
$custom-light: #7e95d5;
$custom-dark: #000000;

JSON

{
  "hex": "#366cc2",
  "rgb": {
    "r": 54,
    "g": 108,
    "b": 194
  },
  "hsl": {
    "h": 216.857,
    "s": 56.452,
    "l": 48.627
  },
  "oklch": {
    "l": 0.53957,
    "c": 0.14632,
    "h": 259.4
  },
  "luminance": 0.15404
}

Semantic roles & 50–950 ramp

primary

#366CC2

secondary

#CCB288

accent

#A548E0

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366CC2

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

Preview Lab → · Contrast checker → · Palette generator →