#366CD7#366CD7

#366CD7 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.4% C 0.175 H 262.2°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#366CD7
RGB	rgb(54, 108, 215)
HSL	hsl(220, 67%, 53%)
HSV	hsv(220, 75%, 84%)
CMYK	cmyk(74.9%, 49.8%, 0%, 15.7%)
CIE-LAB	lab(47.51, 19.34, -60.13)
CIE-LCH	lch(47.51, 63.16, 287.83°)
OKLab	oklab(55.41% -0.0237 -0.1729)
OKLCH	oklch(55.41% 0.175 262.2)
XYZ	xyz(19.1452, 16.4135, 66.4359)
Luminance	0.1642 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366CD7 #D7A136

analogous

#36BCD7 #366CD7 #5136D7

triadic

#366CD7 #D7366C #6CD736

tetradic

#366CD7 #D736BC #D7A136 #36D751

square

#366CD7 #D736BC #D7A136 #36D751

split-complementary

#366CD7 #D75136 #BCD736

monochromatic

#18397A #2251AD #366CD7 #6991E1 #9CB7EB

Accessibility & contrast

On white

4.90

#366CD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#366CD7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366CD7

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366CD7	#FFFFFF	#000000	##FFFFFF
##366CD7	1.00	4.90	4.28	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B79DB

Deuteranopia (green-blind)

#006AD5

Tritanopia (blue-blind)

#008697

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #366cd7;
/* rgb */ color: rgb(54, 108, 215);
/* oklch */ color: oklch(55.4% 0.175 262.2);

Tailwind

colors: {
  custom: {
    50: '#8395e4',
    500: '#366cd7',
    950: '#000000',
  },
}

SCSS

$custom: #366cd7;
$custom-light: #8395e4;
$custom-dark: #000000;

JSON

{
  "hex": "#366cd7",
  "rgb": {
    "r": 54,
    "g": 108,
    "b": 215
  },
  "hsl": {
    "h": 219.876,
    "s": 66.805,
    "l": 52.745
  },
  "oklch": {
    "l": 0.55407,
    "c": 0.17451,
    "h": 262.2
  },
  "luminance": 0.16416
}

Semantic roles & 50–950 ramp

primary

#366CD7

secondary

#D7C092

accent

#B03EEA

background

#F8F9FE

surface

#F0F1FC

border

#CBCBD5

text

#0C0D16

muted

#7D7E84

Preview Lab

Preview with #366CD7

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

Preview Lab → · Contrast checker → · Palette generator →