#366EBE#366EBE

#366EBE is a mid, vivid blue. Relative luminance 0.157; OKLCH L 54.1% C 0.139 H 257.7°. Best body text is #FFFFFF at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#366EBE
RGB	rgb(54, 110, 190)
HSL	hsl(215, 56%, 48%)
HSV	hsv(215, 72%, 75%)
CMYK	cmyk(71.6%, 42.1%, 0%, 25.5%)
CIE-LAB	lab(46.51, 8.83, -47.40)
CIE-LCH	lch(46.51, 48.21, 280.55°)
OKLab	oklab(54.14% -0.0296 -0.1354)
OKLCH	oklch(54.14% 0.139 257.7)
XYZ	xyz(16.3881, 15.6521, 50.8627)
Luminance	0.1565 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366EBE #BE8636

analogous

#36B2BE #366EBE #4236BE

triadic

#366EBE #BE366E #6EBE36

tetradic

#366EBE #BE36B2 #BE8636 #36BE42

square

#366EBE #BE36B2 #BE8636 #36BE42

split-complementary

#366EBE #BE4236 #B2BE36

monochromatic

#1B375F #28528E #366EBE #608FD2 #8FB0DF

Accessibility & contrast

On white

5.08

#366EBE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#366EBE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366EBE

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366EBE	#FFFFFF	#000000	##FFFFFF
##366EBE	1.00	5.08	4.13	5.08
#FFFFFF	5.08	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4875C1

Deuteranopia (green-blind)

#3168BC

Tritanopia (blue-blind)

#00818D

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #366ebe;
/* rgb */ color: rgb(54, 110, 190);
/* oklch */ color: oklch(54.1% 0.139 257.7);

Tailwind

colors: {
  custom: {
    50: '#7e97d2',
    500: '#366ebe',
    950: '#000000',
  },
}

SCSS

$custom: #366ebe;
$custom-light: #7e97d2;
$custom-dark: #000000;

JSON

{
  "hex": "#366ebe",
  "rgb": {
    "r": 54,
    "g": 110,
    "b": 190
  },
  "hsl": {
    "h": 215.294,
    "s": 55.738,
    "l": 47.843
  },
  "oklch": {
    "l": 0.54139,
    "c": 0.13861,
    "h": 257.7
  },
  "luminance": 0.15654
}

Semantic roles & 50–950 ramp

primary

#366EBE

secondary

#CAAE86

accent

#A149DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #366EBE

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

Preview Lab → · Contrast checker → · Palette generator →