#366DC6#366DC6

#366DC6 is a mid, vivid blue. Relative luminance 0.158; OKLCH L 54.4% C 0.151 H 259.6°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#366DC6
RGB	rgb(54, 109, 198)
HSL	hsl(217, 57%, 49%)
HSV	hsv(217, 73%, 78%)
CMYK	cmyk(72.7%, 44.9%, 0%, 22.4%)
CIE-LAB	lab(46.71, 12.41, -51.70)
CIE-LCH	lch(46.71, 53.17, 283.50°)
OKLab	oklab(54.44% -0.0271 -0.1481)
OKLCH	oklch(54.44% 0.151 259.6)
XYZ	xyz(17.1793, 15.7969, 55.5588)
Luminance	0.1580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366DC6 #C68F36

analogous

#36B5C6 #366DC6 #4736C6

triadic

#366DC6 #C6366D #6DC636

tetradic

#366DC6 #C636B5 #C68F36 #36C647

square

#366DC6 #C636B5 #C68F36 #36C647

split-complementary

#366DC6 #C64736 #B5C636

monochromatic

#1C3866 #295396 #366DC6 #648FD5 #94B2E2

Accessibility & contrast

On white

5.05

#366DC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#366DC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DC6

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366DC6	#FFFFFF	#000000	##FFFFFF
##366DC6	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4076C9

Deuteranopia (green-blind)

#2369C4

Tritanopia (blue-blind)

#008290

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #366dc6;
/* rgb */ color: rgb(54, 109, 198);
/* oklch */ color: oklch(54.4% 0.151 259.6);

Tailwind

colors: {
  custom: {
    50: '#7f96d8',
    500: '#366dc6',
    950: '#000000',
  },
}

SCSS

$custom: #366dc6;
$custom-light: #7f96d8;
$custom-dark: #000000;

JSON

{
  "hex": "#366dc6",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 198
  },
  "hsl": {
    "h": 217.083,
    "s": 57.143,
    "l": 49.412
  },
  "oklch": {
    "l": 0.54441,
    "c": 0.15055,
    "h": 259.6
  },
  "luminance": 0.15799
}

Semantic roles & 50–950 ramp

primary

#366DC6

secondary

#CDB48B

accent

#A647E0

background

#F8F9FD

surface

#F0F1FA

border

#CBCBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366DC6

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

Preview Lab → · Contrast checker → · Palette generator →