#365CD3#365CD3

#365CD3 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.9% C 0.188 H 266.3°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#365CD3
RGB	rgb(54, 92, 211)
HSL	hsl(225, 64%, 52%)
HSV	hsv(225, 74%, 83%)
CMYK	cmyk(74.4%, 56.4%, 0%, 17.3%)
CIE-LAB	lab(42.97, 28.08, -65.20)
CIE-LCH	lch(42.97, 70.99, 293.30°)
OKLab	oklab(51.88% -0.012 -0.1881)
OKLCH	oklch(51.88% 0.188 266.3)
XYZ	xyz(17.1022, 13.1398, 63.2503)
Luminance	0.1314 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#365CD3 #D3AD36

analogous

#36AAD3 #365CD3 #5F36D3

triadic

#365CD3 #D3365C #5CD336

tetradic

#365CD3 #D336AA #D3AD36 #36D35F

square

#365CD3 #D336AA #D3AD36 #36D35F

split-complementary

#365CD3 #D35F36 #AAD336

monochromatic

#1A3075 #2544A7 #365CD3 #6885DE #9AADE9

Accessibility & contrast

On white

5.79

#365CD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#365CD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #365CD3

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##365CD3	#FFFFFF	#000000	##FFFFFF
##365CD3	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DD7

Deuteranopia (green-blind)

#005FD1

Tritanopia (blue-blind)

#00798E

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #365cd3;
/* rgb */ color: rgb(54, 92, 211);
/* oklch */ color: oklch(51.9% 0.188 266.3);

Tailwind

colors: {
  custom: {
    50: '#8389e1',
    500: '#365cd3',
    950: '#000000',
  },
}

SCSS

$custom: #365cd3;
$custom-light: #8389e1;
$custom-dark: #000000;

JSON

{
  "hex": "#365cd3",
  "rgb": {
    "r": 54,
    "g": 92,
    "b": 211
  },
  "hsl": {
    "h": 225.478,
    "s": 64.082,
    "l": 51.961
  },
  "oklch": {
    "l": 0.51879,
    "c": 0.18846,
    "h": 266.3
  },
  "luminance": 0.13142
}

Semantic roles & 50–950 ramp

primary

#365CD3

secondary

#D5C490

accent

#BF41E7

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #365CD3

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

Preview Lab → · Contrast checker → · Palette generator →