#366BB7#366BB7

#366BB7 is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.0% C 0.133 H 257.7°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#366BB7
RGB	rgb(54, 107, 183)
HSL	hsl(215, 54%, 46%)
HSV	hsv(215, 70%, 72%)
CMYK	cmyk(70.5%, 41.5%, 0%, 28.2%)
CIE-LAB	lab(45.24, 8.15, -45.37)
CIE-LCH	lch(45.24, 46.09, 280.18°)
OKLab	oklab(53.02% -0.0283 -0.1295)
OKLCH	oklch(53.02% 0.133 257.7)
XYZ	xyz(15.3232, 14.7169, 46.8237)
Luminance	0.1472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366BB7 #B78236

analogous

#36ACB7 #366BB7 #4236B7

triadic

#366BB7 #B7366B #6BB736

tetradic

#366BB7 #B736AC #B78236 #36B742

square

#366BB7 #B736AC #B78236 #36B742

split-complementary

#366BB7 #B74236 #ACB736

monochromatic

#1A3458 #284F88 #366BB7 #5B8BCF #8BACDD

Accessibility & contrast

On white

5.32

#366BB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#366BB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366BB7

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366BB7	#FFFFFF	#000000	##FFFFFF
##366BB7	1.00	5.32	3.94	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4772BA

Deuteranopia (green-blind)

#3266B5

Tritanopia (blue-blind)

#007D88

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #366bb7;
/* rgb */ color: rgb(54, 107, 183);
/* oklch */ color: oklch(53.0% 0.133 257.7);

Tailwind

colors: {
  custom: {
    50: '#7c94cd',
    500: '#366bb7',
    950: '#000000',
  },
}

SCSS

$custom: #366bb7;
$custom-light: #7c94cd;
$custom-dark: #000000;

JSON

{
  "hex": "#366bb7",
  "rgb": {
    "r": 54,
    "g": 107,
    "b": 183
  },
  "hsl": {
    "h": 215.349,
    "s": 54.43,
    "l": 46.471
  },
  "oklch": {
    "l": 0.53022,
    "c": 0.13255,
    "h": 257.7
  },
  "luminance": 0.14719
}

Semantic roles & 50–950 ramp

primary

#366BB7

secondary

#C7AB82

accent

#A14ADE

background

#F8F9FC

surface

#EFF1F9

border

#CACBD2

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #366BB7

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

Preview Lab → · Contrast checker → · Palette generator →