#366BBA#366BBA

#366BBA is a mid, vivid blue. Relative luminance 0.148; OKLCH L 53.2% C 0.137 H 258.3°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#366BBA
RGB	rgb(54, 107, 186)
HSL	hsl(216, 55%, 47%)
HSV	hsv(216, 71%, 73%)
CMYK	cmyk(71%, 42.5%, 0%, 27.1%)
CIE-LAB	lab(45.42, 9.25, -46.83)
CIE-LCH	lch(45.42, 47.74, 281.17°)
OKLab	oklab(53.21% -0.0276 -0.1338)
OKLCH	oklch(53.21% 0.137 258.3)
XYZ	xyz(15.6387, 14.8432, 48.4857)
Luminance	0.1484 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366BBA #BA8536

analogous

#36ADBA #366BBA #4336BA

triadic

#366BBA #BA366B #6BBA36

tetradic

#366BBA #BA36AD #BA8536 #36BA43

square

#366BBA #BA36AD #BA8536 #36BA43

split-complementary

#366BBA #BA4336 #ADBA36

monochromatic

#1A345B #28508B #366BBA #5D8BD0 #8DADDE

Accessibility & contrast

On white

5.29

#366BBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#366BBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366BBA

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366BBA	#FFFFFF	#000000	##FFFFFF
##366BBA	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4572BD

Deuteranopia (green-blind)

#2F66B8

Tritanopia (blue-blind)

#007D89

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #366bba;
/* rgb */ color: rgb(54, 107, 186);
/* oklch */ color: oklch(53.2% 0.137 258.3);

Tailwind

colors: {
  custom: {
    50: '#7d94cf',
    500: '#366bba',
    950: '#000000',
  },
}

SCSS

$custom: #366bba;
$custom-light: #7d94cf;
$custom-dark: #000000;

JSON

{
  "hex": "#366bba",
  "rgb": {
    "r": 54,
    "g": 107,
    "b": 186
  },
  "hsl": {
    "h": 215.909,
    "s": 55,
    "l": 47.059
  },
  "oklch": {
    "l": 0.53214,
    "c": 0.13662,
    "h": 258.3
  },
  "luminance": 0.14845
}

Semantic roles & 50–950 ramp

primary

#366BBA

secondary

#C8AD84

accent

#A349DE

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #366BBA

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

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