#366DBE#366DBE

#366DBE is a mid, vivid blue. Relative luminance 0.154; OKLCH L 53.9% C 0.140 H 258.2°. Best body text is #FFFFFF at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#366DBE
RGB	rgb(54, 109, 190)
HSL	hsl(216, 56%, 48%)
HSV	hsv(216, 72%, 75%)
CMYK	cmyk(71.6%, 42.6%, 0%, 25.5%)
CIE-LAB	lab(46.23, 9.46, -47.86)
CIE-LCH	lch(46.23, 48.78, 281.18°)
OKLab	oklab(53.92% -0.0287 -0.1368)
OKLCH	oklch(53.92% 0.14 258.2)
XYZ	xyz(16.2808, 15.4375, 50.8269)
Luminance	0.1544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366DBE #BE8736

analogous

#36B1BE #366DBE #4336BE

triadic

#366DBE #BE366D #6DBE36

tetradic

#366DBE #BE36B1 #BE8736 #36BE43

square

#366DBE #BE36B1 #BE8736 #36BE43

split-complementary

#366DBE #BE4336 #B1BE36

monochromatic

#1B365F #28528E #366DBE #608ED2 #8FB0DF

Accessibility & contrast

On white

5.14

#366DBE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#366DBE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DBE

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366DBE	#FFFFFF	#000000	##FFFFFF
##366DBE	1.00	5.14	4.09	5.14
#FFFFFF	5.14	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4674C1

Deuteranopia (green-blind)

#2E68BC

Tritanopia (blue-blind)

#00808C

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #366dbe;
/* rgb */ color: rgb(54, 109, 190);
/* oklch */ color: oklch(53.9% 0.140 258.2);

Tailwind

colors: {
  custom: {
    50: '#7e96d2',
    500: '#366dbe',
    950: '#000000',
  },
}

SCSS

$custom: #366dbe;
$custom-light: #7e96d2;
$custom-dark: #000000;

JSON

{
  "hex": "#366dbe",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 190
  },
  "hsl": {
    "h": 215.735,
    "s": 55.738,
    "l": 47.843
  },
  "oklch": {
    "l": 0.53916,
    "c": 0.13975,
    "h": 258.2
  },
  "luminance": 0.15439
}

Semantic roles & 50–950 ramp

primary

#366DBE

secondary

#CAAE86

accent

#A249DF

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #366DBE

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

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