#366DC9#366DC9

#366DC9 is a mid, vivid blue. Relative luminance 0.159; OKLCH L 54.6% C 0.155 H 260.1°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#366DC9
RGB	rgb(54, 109, 201)
HSL	hsl(218, 58%, 50%)
HSV	hsv(218, 73%, 79%)
CMYK	cmyk(73.1%, 45.8%, 0%, 21.2%)
CIE-LAB	lab(46.89, 13.52, -53.13)
CIE-LCH	lch(46.89, 54.82, 284.28°)
OKLab	oklab(54.64% -0.0266 -0.1523)
OKLCH	oklch(54.64% 0.155 260.1)
XYZ	xyz(17.5288, 15.9367, 57.3993)
Luminance	0.1594 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366DC9 #C99236

analogous

#36B6C9 #366DC9 #4936C9

triadic

#366DC9 #C9366D #6DC936

tetradic

#366DC9 #C936B6 #C99236 #36C949

square

#366DC9 #C936B6 #C99236 #36C949

split-complementary

#366DC9 #C94936 #B6C936

monochromatic

#1C3969 #295399 #366DC9 #6690D6 #96B3E3

Accessibility & contrast

On white

5.01

#366DC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#366DC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DC9

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366DC9	#FFFFFF	#000000	##FFFFFF
##366DC9	1.00	5.01	4.19	5.01
#FFFFFF	5.01	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D76CC

Deuteranopia (green-blind)

#1D69C7

Tritanopia (blue-blind)

#008391

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #366dc9;
/* rgb */ color: rgb(54, 109, 201);
/* oklch */ color: oklch(54.6% 0.155 260.1);

Tailwind

colors: {
  custom: {
    50: '#8096da',
    500: '#366dc9',
    950: '#000000',
  },
}

SCSS

$custom: #366dc9;
$custom-light: #8096da;
$custom-dark: #000000;

JSON

{
  "hex": "#366dc9",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 201
  },
  "hsl": {
    "h": 217.551,
    "s": 57.647,
    "l": 50
  },
  "oklch": {
    "l": 0.54643,
    "c": 0.15459,
    "h": 260.1
  },
  "luminance": 0.15939
}

Semantic roles & 50–950 ramp

primary

#366DC9

secondary

#CEB68C

accent

#A747E1

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #366DC9

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

Preview Lab → · Contrast checker → · Palette generator →