#365BD3#365BD3

#365BD3 is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.7% C 0.190 H 266.6°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#365BD3
RGB	rgb(54, 91, 211)
HSL	hsl(226, 64%, 52%)
HSV	hsv(226, 74%, 83%)
CMYK	cmyk(74.4%, 56.9%, 0%, 17.3%)
CIE-LAB	lab(42.71, 28.72, -65.62)
CIE-LCH	lch(42.71, 71.63, 293.64°)
OKLab	oklab(51.69% -0.0113 -0.1893)
OKLCH	oklch(51.69% 0.19 266.6)
XYZ	xyz(17.0162, 12.9677, 63.2216)
Luminance	0.1297 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#365BD3 #D3AE36

analogous

#36AAD3 #365BD3 #6036D3

triadic

#365BD3 #D3365B #5BD336

tetradic

#365BD3 #D336AA #D3AE36 #36D360

square

#365BD3 #D336AA #D3AE36 #36D360

split-complementary

#365BD3 #D36036 #AAD336

monochromatic

#1A2F75 #2543A7 #365BD3 #6884DE #9AADE9

Accessibility & contrast

On white

5.84

#365BD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#365BD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #365BD3

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##365BD3	#FFFFFF	#000000	##FFFFFF
##365BD3	1.00	5.84	3.59	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD7

Deuteranopia (green-blind)

#005ED1

Tritanopia (blue-blind)

#00798E

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #365bd3;
/* rgb */ color: rgb(54, 91, 211);
/* oklch */ color: oklch(51.7% 0.190 266.6);

Tailwind

colors: {
  custom: {
    50: '#8388e1',
    500: '#365bd3',
    950: '#000000',
  },
}

SCSS

$custom: #365bd3;
$custom-light: #8388e1;
$custom-dark: #000000;

JSON

{
  "hex": "#365bd3",
  "rgb": {
    "r": 54,
    "g": 91,
    "b": 211
  },
  "hsl": {
    "h": 225.86,
    "s": 64.082,
    "l": 51.961
  },
  "oklch": {
    "l": 0.51685,
    "c": 0.18967,
    "h": 266.6
  },
  "luminance": 0.1297
}

Semantic roles & 50–950 ramp

primary

#365BD3

secondary

#D5C590

accent

#C041E7

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #365BD3

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

Preview Lab → · Contrast checker → · Palette generator →