#366AC4#366AC4

#366AC4 is a mid, vivid blue. Relative luminance 0.151; OKLCH L 53.7% C 0.151 H 260.6°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#366AC4
RGB	rgb(54, 106, 196)
HSL	hsl(218, 57%, 49%)
HSV	hsv(218, 72%, 77%)
CMYK	cmyk(72.4%, 45.9%, 0%, 23.1%)
CIE-LAB	lab(45.74, 13.57, -52.11)
CIE-LCH	lch(45.74, 53.84, 284.60°)
OKLab	oklab(53.65% -0.0248 -0.1493)
OKLCH	oklch(53.65% 0.151 260.6)
XYZ	xyz(16.6356, 15.0761, 54.2471)
Luminance	0.1508 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366AC4 #C49036

analogous

#36B1C4 #366AC4 #4936C4

triadic

#366AC4 #C4366A #6AC436

tetradic

#366AC4 #C436B1 #C49036 #36C449

square

#366AC4 #C436B1 #C49036 #36C449

split-complementary

#366AC4 #C44936 #B1C436

monochromatic

#1C3664 #295094 #366AC4 #638CD4 #93B0E1

Accessibility & contrast

On white

5.23

#366AC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#366AC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366AC4

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366AC4	#FFFFFF	#000000	##FFFFFF
##366AC4	1.00	5.23	4.02	5.23
#FFFFFF	5.23	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B73C7

Deuteranopia (green-blind)

#1C66C2

Tritanopia (blue-blind)

#007F8D

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #366ac4;
/* rgb */ color: rgb(54, 106, 196);
/* oklch */ color: oklch(53.7% 0.151 260.6);

Tailwind

colors: {
  custom: {
    50: '#7f94d6',
    500: '#366ac4',
    950: '#000000',
  },
}

SCSS

$custom: #366ac4;
$custom-light: #7f94d6;
$custom-dark: #000000;

JSON

{
  "hex": "#366ac4",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 196
  },
  "hsl": {
    "h": 218.028,
    "s": 56.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.53655,
    "c": 0.15137,
    "h": 260.6
  },
  "luminance": 0.15078
}

Semantic roles & 50–950 ramp

primary

#366AC4

secondary

#CCB489

accent

#A848E0

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366AC4

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

Preview Lab → · Contrast checker → · Palette generator →