#366DD7#366DD7

#366DD7 is a mid, vivid blue. Relative luminance 0.166; OKLCH L 55.6% C 0.173 H 261.9°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#366DD7
RGB	rgb(54, 109, 215)
HSL	hsl(220, 67%, 53%)
HSV	hsv(220, 75%, 84%)
CMYK	cmyk(74.9%, 49.3%, 0%, 15.7%)
CIE-LAB	lab(47.78, 18.70, -59.69)
CIE-LCH	lch(47.78, 62.55, 287.40°)
OKLab	oklab(55.62% -0.0245 -0.1716)
OKLCH	oklch(55.62% 0.173 261.9)
XYZ	xyz(19.2513, 16.6257, 66.4713)
Luminance	0.1663 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#366DD7 #D7A036

analogous

#36BED7 #366DD7 #4F36D7

triadic

#366DD7 #D7366D #6DD736

tetradic

#366DD7 #D736BE #D7A036 #36D74F

square

#366DD7 #D736BE #D7A036 #36D74F

split-complementary

#366DD7 #D74F36 #BED736

monochromatic

#183A7A #2252AD #366DD7 #6992E1 #9CB7EB

Accessibility & contrast

On white

4.85

#366DD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#366DD7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #366DD7

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##366DD7	#FFFFFF	#000000	##FFFFFF
##366DD7	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E79DB

Deuteranopia (green-blind)

#006AD5

Tritanopia (blue-blind)

#008698

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #366dd7;
/* rgb */ color: rgb(54, 109, 215);
/* oklch */ color: oklch(55.6% 0.173 261.9);

Tailwind

colors: {
  custom: {
    50: '#8396e4',
    500: '#366dd7',
    950: '#000000',
  },
}

SCSS

$custom: #366dd7;
$custom-light: #8396e4;
$custom-dark: #000000;

JSON

{
  "hex": "#366dd7",
  "rgb": {
    "r": 54,
    "g": 109,
    "b": 215
  },
  "hsl": {
    "h": 219.503,
    "s": 66.805,
    "l": 52.745
  },
  "oklch": {
    "l": 0.55615,
    "c": 0.17332,
    "h": 261.9
  },
  "luminance": 0.16628
}

Semantic roles & 50–950 ramp

primary

#366DD7

secondary

#D7BF92

accent

#AF3EEA

background

#F8F9FE

surface

#F0F1FC

border

#CBCBD5

text

#0C0D16

muted

#7D7E84

Preview Lab

Preview with #366DD7

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

Preview Lab → · Contrast checker → · Palette generator →