#365AD3#365AD3

#365AD3 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.5% C 0.191 H 266.8°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#365AD3
RGB	rgb(54, 90, 211)
HSL	hsl(226, 64%, 52%)
HSV	hsv(226, 74%, 83%)
CMYK	cmyk(74.4%, 57.3%, 0%, 17.3%)
CIE-LAB	lab(42.46, 29.36, -66.04)
CIE-LCH	lch(42.46, 72.27, 293.97°)
OKLab	oklab(51.49% -0.0106 -0.1906)
OKLCH	oklch(51.49% 0.191 266.8)
XYZ	xyz(16.9312, 12.7979, 63.1933)
Luminance	0.1280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#365AD3 #D3AF36

analogous

#36A9D3 #365AD3 #6136D3

triadic

#365AD3 #D3365A #5AD336

tetradic

#365AD3 #D336A9 #D3AF36 #36D361

square

#365AD3 #D336A9 #D3AF36 #36D361

split-complementary

#365AD3 #D36136 #A9D336

monochromatic

#1A2F75 #2543A7 #365AD3 #6883DE #9AACE9

Accessibility & contrast

On white

5.90

#365AD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#365AD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #365AD3

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##365AD3	#FFFFFF	#000000	##FFFFFF
##365AD3	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD7

Deuteranopia (green-blind)

#005DD1

Tritanopia (blue-blind)

#00788E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #365ad3;
/* rgb */ color: rgb(54, 90, 211);
/* oklch */ color: oklch(51.5% 0.191 266.8);

Tailwind

colors: {
  custom: {
    50: '#8388e1',
    500: '#365ad3',
    950: '#000000',
  },
}

SCSS

$custom: #365ad3;
$custom-light: #8388e1;
$custom-dark: #000000;

JSON

{
  "hex": "#365ad3",
  "rgb": {
    "r": 54,
    "g": 90,
    "b": 211
  },
  "hsl": {
    "h": 226.242,
    "s": 64.082,
    "l": 51.961
  },
  "oklch": {
    "l": 0.51492,
    "c": 0.19086,
    "h": 266.8
  },
  "luminance": 0.128
}

Semantic roles & 50–950 ramp

primary

#365AD3

secondary

#D5C590

accent

#C141E7

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #365AD3

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

Preview Lab → · Contrast checker → · Palette generator →