#366FBF#366FBF

#366FBF is a mid, vivid blue. Relative luminance 0.159; OKLCH L 54.4% C 0.139 H 257.4°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#366FBF
RGB	rgb(54, 111, 191)
HSL	hsl(215, 56%, 48%)
HSV	hsv(215, 72%, 75%)
CMYK	cmyk(71.7%, 41.9%, 0%, 25.1%)
CIE-LAB	lab(46.86, 8.57, -47.42)
CIE-LCH	lch(46.86, 48.19, 280.25°)
OKLab	oklab(54.43% -0.0303 -0.1355)
OKLCH	oklch(54.43% 0.139 257.4)
XYZ	xyz(16.6063, 15.9129, 51.4764)
Luminance	0.1592 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366FBF #BF8636

analogous

#36B3BF #366FBF #4136BF

triadic

#366FBF #BF366F #6FBF36

tetradic

#366FBF #BF36B3 #BF8636 #36BF41

square

#366FBF #BF36B3 #BF8636 #36BF41

split-complementary

#366FBF #BF4136 #B3BF36

monochromatic

#1B3860 #29538F #366FBF #6090D2 #90B1E0

Accessibility & contrast

On white

5.02

#366FBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#366FBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366FBF

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366FBF	#FFFFFF	#000000	##FFFFFF
##366FBF	1.00	5.02	4.18	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4976C2

Deuteranopia (green-blind)

#3269BD

Tritanopia (blue-blind)

#00828D

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #366fbf;
/* rgb */ color: rgb(54, 111, 191);
/* oklch */ color: oklch(54.4% 0.139 257.4);

Tailwind

colors: {
  custom: {
    50: '#7e97d3',
    500: '#366fbf',
    950: '#000000',
  },
}

SCSS

$custom: #366fbf;
$custom-light: #7e97d3;
$custom-dark: #000000;

JSON

{
  "hex": "#366fbf",
  "rgb": {
    "r": 54,
    "g": 111,
    "b": 191
  },
  "hsl": {
    "h": 215.036,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.54425,
    "c": 0.13883,
    "h": 257.4
  },
  "luminance": 0.15915
}

Semantic roles & 50–950 ramp

primary

#366FBF

secondary

#CAAE87

accent

#A149DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #366FBF

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

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