#366CBA#366CBA

#366CBA is a mid, vivid blue. Relative luminance 0.151; OKLCH L 53.4% C 0.135 H 257.8°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#366CBA
RGB	rgb(54, 108, 186)
HSL	hsl(215, 55%, 47%)
HSV	hsv(215, 71%, 73%)
CMYK	cmyk(71%, 41.9%, 0%, 27.1%)
CIE-LAB	lab(45.71, 8.62, -46.37)
CIE-LCH	lch(45.71, 47.17, 280.53°)
OKLab	oklab(53.44% -0.0286 -0.1324)
OKLCH	oklch(53.44% 0.135 257.8)
XYZ	xyz(15.7436, 15.0529, 48.5206)
Luminance	0.1505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366CBA #BA8436

analogous

#36AEBA #366CBA #4236BA

triadic

#366CBA #BA366C #6CBA36

tetradic

#366CBA #BA36AE #BA8436 #36BA42

square

#366CBA #BA36AE #BA8436 #36BA42

split-complementary

#366CBA #BA4236 #AEBA36

monochromatic

#1A355B #28508B #366CBA #5D8CD0 #8DAEDE

Accessibility & contrast

On white

5.24

#366CBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#366CBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366CBA

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366CBA	#FFFFFF	#000000	##FFFFFF
##366CBA	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4773BD

Deuteranopia (green-blind)

#3167B8

Tritanopia (blue-blind)

#007E8A

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #366cba;
/* rgb */ color: rgb(54, 108, 186);
/* oklch */ color: oklch(53.4% 0.135 257.8);

Tailwind

colors: {
  custom: {
    50: '#7d95cf',
    500: '#366cba',
    950: '#000000',
  },
}

SCSS

$custom: #366cba;
$custom-light: #7d95cf;
$custom-dark: #000000;

JSON

{
  "hex": "#366cba",
  "rgb": {
    "r": 54,
    "g": 108,
    "b": 186
  },
  "hsl": {
    "h": 215.455,
    "s": 55,
    "l": 47.059
  },
  "oklch": {
    "l": 0.53437,
    "c": 0.13548,
    "h": 257.8
  },
  "luminance": 0.15055
}

Semantic roles & 50–950 ramp

primary

#366CBA

secondary

#C8AC84

accent

#A149DE

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #366CBA

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

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