#366AC6#366AC6

#366AC6 is a mid, vivid blue. Relative luminance 0.152; OKLCH L 53.8% C 0.154 H 260.8°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#366AC6
RGB	rgb(54, 106, 198)
HSL	hsl(218, 57%, 49%)
HSV	hsv(218, 73%, 78%)
CMYK	cmyk(72.7%, 46.5%, 0%, 22.4%)
CIE-LAB	lab(45.86, 14.31, -53.06)
CIE-LCH	lch(45.86, 54.95, 285.10°)
OKLab	oklab(53.79% -0.0245 -0.1521)
OKLCH	oklch(53.79% 0.154 260.8)
XYZ	xyz(16.8647, 15.1677, 55.4540)
Luminance	0.1517 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366AC6 #C69236

analogous

#36B2C6 #366AC6 #4A36C6

triadic

#366AC6 #C6366A #6AC636

tetradic

#366AC6 #C636B2 #C69236 #36C64A

square

#366AC6 #C636B2 #C69236 #36C64A

split-complementary

#366AC6 #C64A36 #B2C636

monochromatic

#1C3766 #295096 #366AC6 #648DD5 #94B0E2

Accessibility & contrast

On white

5.21

#366AC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#366AC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366AC6

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366AC6	#FFFFFF	#000000	##FFFFFF
##366AC6	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A74C9

Deuteranopia (green-blind)

#1866C4

Tritanopia (blue-blind)

#00808E

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #366ac6;
/* rgb */ color: rgb(54, 106, 198);
/* oklch */ color: oklch(53.8% 0.154 260.8);

Tailwind

colors: {
  custom: {
    50: '#7f94d8',
    500: '#366ac6',
    950: '#000000',
  },
}

SCSS

$custom: #366ac6;
$custom-light: #7f94d8;
$custom-dark: #000000;

JSON

{
  "hex": "#366ac6",
  "rgb": {
    "r": 54,
    "g": 106,
    "b": 198
  },
  "hsl": {
    "h": 218.333,
    "s": 57.143,
    "l": 49.412
  },
  "oklch": {
    "l": 0.53792,
    "c": 0.15408,
    "h": 260.8
  },
  "luminance": 0.1517
}

Semantic roles & 50–950 ramp

primary

#366AC6

secondary

#CDB58B

accent

#A947E0

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366AC6

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

Preview Lab → · Contrast checker → · Palette generator →