#366AC1#366AC1

#366AC1 is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.5% C 0.147 H 260.1°. Best body text is #FFFFFF at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#366AC1
RGB	rgb(54, 106, 193)
HSL	hsl(218, 56%, 48%)
HSV	hsv(218, 72%, 76%)
CMYK	cmyk(72%, 45.1%, 0%, 24.3%)
CIE-LAB	lab(45.55, 12.46, -50.67)
CIE-LCH	lch(45.55, 52.18, 283.82°)
OKLab	oklab(53.45% -0.0254 -0.1451)
OKLCH	oklch(53.45% 0.147 260.1)
XYZ	xyz(16.2975, 14.9408, 52.4667)
Luminance	0.1494 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366AC1 #C18D36

analogous

#36AFC1 #366AC1 #4736C1

triadic

#366AC1 #C1366A #6AC136

tetradic

#366AC1 #C136AF #C18D36 #36C147

square

#366AC1 #C136AF #C18D36 #36C147

split-complementary

#366AC1 #C14736 #AFC136

monochromatic

#1B3561 #295091 #366AC1 #618CD3 #91AFE0

Accessibility & contrast

On white

5.27

#366AC1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.99

#366AC1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366AC1

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366AC1	#FFFFFF	#000000	##FFFFFF
##366AC1	1.00	5.27	3.99	5.27
#FFFFFF	5.27	1.00	21.00	1.00
#000000	3.99	21.00	1.00	21.00
##FFFFFF	5.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E73C4

Deuteranopia (green-blind)

#2266BF

Tritanopia (blue-blind)

#007E8C

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #366ac1;
/* rgb */ color: rgb(54, 106, 193);
/* oklch */ color: oklch(53.5% 0.147 260.1);

Tailwind

colors: {
  custom: {
    50: '#7e94d4',
    500: '#366ac1',
    950: '#000000',
  },
}

SCSS

$custom: #366ac1;
$custom-light: #7e94d4;
$custom-dark: #000000;

JSON

{
  "hex": "#366ac1",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 193
  },
  "hsl": {
    "h": 217.554,
    "s": 56.275,
    "l": 48.431
  },
  "oklch": {
    "l": 0.53453,
    "c": 0.1473,
    "h": 260.1
  },
  "luminance": 0.14943
}

Semantic roles & 50–950 ramp

primary

#366AC1

secondary

#CBB288

accent

#A748E0

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366AC1

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

Preview Lab → · Contrast checker → · Palette generator →