#366AC2#366AC2

#366AC2 is a mid, vivid blue. Relative luminance 0.150; OKLCH L 53.5% C 0.149 H 260.2°. Best body text is #FFFFFF at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#366AC2
RGB	rgb(54, 106, 194)
HSL	hsl(218, 56%, 49%)
HSV	hsv(218, 72%, 76%)
CMYK	cmyk(72.2%, 45.4%, 0%, 23.9%)
CIE-LAB	lab(45.61, 12.83, -51.15)
CIE-LCH	lch(45.61, 52.74, 284.08°)
OKLab	oklab(53.52% -0.0252 -0.1465)
OKLCH	oklch(53.52% 0.149 260.2)
XYZ	xyz(16.4095, 14.9856, 53.0562)
Luminance	0.1499 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366AC2 #C28E36

analogous

#36B0C2 #366AC2 #4836C2

triadic

#366AC2 #C2366A #6AC236

tetradic

#366AC2 #C236B0 #C28E36 #36C248

square

#366AC2 #C236B0 #C28E36 #36C248

split-complementary

#366AC2 #C24836 #B0C236

monochromatic

#1B3662 #295092 #366AC2 #628CD3 #92AFE1

Accessibility & contrast

On white

5.25

#366AC2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.00

#366AC2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366AC2

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366AC2	#FFFFFF	#000000	##FFFFFF
##366AC2	1.00	5.25	4.00	5.25
#FFFFFF	5.25	1.00	21.00	1.00
#000000	4.00	21.00	1.00	21.00
##FFFFFF	5.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D73C5

Deuteranopia (green-blind)

#2066C0

Tritanopia (blue-blind)

#007F8C

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #366ac2;
/* rgb */ color: rgb(54, 106, 194);
/* oklch */ color: oklch(53.5% 0.149 260.2);

Tailwind

colors: {
  custom: {
    50: '#7e94d5',
    500: '#366ac2',
    950: '#000000',
  },
}

SCSS

$custom: #366ac2;
$custom-light: #7e94d5;
$custom-dark: #000000;

JSON

{
  "hex": "#366ac2",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 194
  },
  "hsl": {
    "h": 217.714,
    "s": 56.452,
    "l": 48.627
  },
  "oklch": {
    "l": 0.5352,
    "c": 0.14866,
    "h": 260.2
  },
  "luminance": 0.14987
}

Semantic roles & 50–950 ramp

primary

#366AC2

secondary

#CCB388

accent

#A748E0

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366AC2

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

Preview Lab → · Contrast checker → · Palette generator →