#366ED7#366ED7

#366ED7 is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.8% C 0.172 H 261.5°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#366ED7
RGB	rgb(54, 110, 215)
HSL	hsl(219, 67%, 53%)
HSV	hsv(219, 75%, 84%)
CMYK	cmyk(74.9%, 48.8%, 0%, 15.7%)
CIE-LAB	lab(48.06, 18.07, -59.25)
CIE-LCH	lch(48.06, 61.94, 286.96°)
OKLab	oklab(55.82% -0.0253 -0.1703)
OKLCH	oklch(55.82% 0.172 261.5)
XYZ	xyz(19.3586, 16.8403, 66.5070)
Luminance	0.1684 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366ED7 #D79F36

analogous

#36BFD7 #366ED7 #4E36D7

triadic

#366ED7 #D7366E #6ED736

tetradic

#366ED7 #D736BF #D79F36 #36D74E

square

#366ED7 #D736BF #D79F36 #36D74E

split-complementary

#366ED7 #D74E36 #BFD736

monochromatic

#183A7A #2253AD #366ED7 #6993E1 #9CB8EB

Accessibility & contrast

On white

4.81

#366ED7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#366ED7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366ED7

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366ED7	#FFFFFF	#000000	##FFFFFF
##366ED7	1.00	4.81	4.37	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#317ADB

Deuteranopia (green-blind)

#006BD5

Tritanopia (blue-blind)

#008798

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #366ed7;
/* rgb */ color: rgb(54, 110, 215);
/* oklch */ color: oklch(55.8% 0.172 261.5);

Tailwind

colors: {
  custom: {
    50: '#8396e4',
    500: '#366ed7',
    950: '#000000',
  },
}

SCSS

$custom: #366ed7;
$custom-light: #8396e4;
$custom-dark: #000000;

JSON

{
  "hex": "#366ed7",
  "rgb": {
    "r": 54,
    "g": 110,
    "b": 215
  },
  "hsl": {
    "h": 219.13,
    "s": 66.805,
    "l": 52.745
  },
  "oklch": {
    "l": 0.55824,
    "c": 0.17214,
    "h": 261.5
  },
  "luminance": 0.16842
}

Semantic roles & 50–950 ramp

primary

#366ED7

secondary

#D7BF92

accent

#AE3EEA

background

#F8F9FE

surface

#F0F1FC

border

#CBCBD5

text

#0C0D16

muted

#7D7E84

Preview Lab

Preview with #366ED7

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

Preview Lab → · Contrast checker → · Palette generator →