#366DBF#366DBF

#366DBF is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.0% C 0.141 H 258.4°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#366DBF
RGB	rgb(54, 109, 191)
HSL	hsl(216, 56%, 48%)
HSV	hsv(216, 72%, 75%)
CMYK	cmyk(71.7%, 42.9%, 0%, 25.1%)
CIE-LAB	lab(46.29, 9.83, -48.34)
CIE-LCH	lch(46.29, 49.33, 281.49°)
OKLab	oklab(53.98% -0.0285 -0.1382)
OKLCH	oklch(53.98% 0.141 258.4)
XYZ	xyz(16.3905, 15.4814, 51.4045)
Luminance	0.1548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366DBF #BF8836

analogous

#36B1BF #366DBF #4336BF

triadic

#366DBF #BF366D #6DBF36

tetradic

#366DBF #BF36B1 #BF8836 #36BF43

square

#366DBF #BF36B1 #BF8836 #36BF43

split-complementary

#366DBF #BF4336 #B1BF36

monochromatic

#1B3760 #29528F #366DBF #608ED2 #90B0E0

Accessibility & contrast

On white

5.13

#366DBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#366DBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DBF

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366DBF	#FFFFFF	#000000	##FFFFFF
##366DBF	1.00	5.13	4.10	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4574C2

Deuteranopia (green-blind)

#2D68BD

Tritanopia (blue-blind)

#00808C

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #366dbf;
/* rgb */ color: rgb(54, 109, 191);
/* oklch */ color: oklch(54.0% 0.141 258.4);

Tailwind

colors: {
  custom: {
    50: '#7e96d3',
    500: '#366dbf',
    950: '#000000',
  },
}

SCSS

$custom: #366dbf;
$custom-light: #7e96d3;
$custom-dark: #000000;

JSON

{
  "hex": "#366dbf",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 191
  },
  "hsl": {
    "h": 215.912,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.53981,
    "c": 0.1411,
    "h": 258.4
  },
  "luminance": 0.15483
}

Semantic roles & 50–950 ramp

primary

#366DBF

secondary

#CAAF87

accent

#A349DF

background

#F8F9FD

surface

#EFF1FA

border

#CACBD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366DBF

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

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