#365BD1#365BD1

#365BD1 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.5% C 0.187 H 266.5°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#365BD1
RGB	rgb(54, 91, 209)
HSL	hsl(226, 63%, 52%)
HSV	hsv(226, 74%, 82%)
CMYK	cmyk(74.2%, 56.5%, 0%, 18%)
CIE-LAB	lab(42.56, 27.99, -64.72)
CIE-LCH	lch(42.56, 70.51, 293.39°)
OKLab	oklab(51.52% -0.0114 -0.1867)
OKLCH	oklch(51.52% 0.187 266.5)
XYZ	xyz(16.7670, 12.8681, 61.9094)
Luminance	0.1287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#365BD1 #D1AC36

analogous

#36A9D1 #365BD1 #5F36D1

triadic

#365BD1 #D1365B #5BD136

tetradic

#365BD1 #D136A9 #D1AC36 #36D15F

square

#365BD1 #D136A9 #D1AC36 #36D15F

split-complementary

#365BD1 #D15F36 #A9D136

monochromatic

#1A2F72 #2644A4 #365BD1 #6884DC #9AACE8

Accessibility & contrast

On white

5.88

#365BD1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#365BD1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #365BD1

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##365BD1	#FFFFFF	#000000	##FFFFFF
##365BD1	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD5

Deuteranopia (green-blind)

#005ECF

Tritanopia (blue-blind)

#00788D

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #365bd1;
/* rgb */ color: rgb(54, 91, 209);
/* oklch */ color: oklch(51.5% 0.187 266.5);

Tailwind

colors: {
  custom: {
    50: '#8288e0',
    500: '#365bd1',
    950: '#000000',
  },
}

SCSS

$custom: #365bd1;
$custom-light: #8288e0;
$custom-dark: #000000;

JSON

{
  "hex": "#365bd1",
  "rgb": {
    "r": 54,
    "g": 91,
    "b": 209
  },
  "hsl": {
    "h": 225.677,
    "s": 62.753,
    "l": 51.569
  },
  "oklch": {
    "l": 0.51524,
    "c": 0.18702,
    "h": 266.5
  },
  "luminance": 0.1287
}

Semantic roles & 50–950 ramp

primary

#365BD1

secondary

#D3C38F

accent

#BF42E6

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #365BD1

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

Preview Lab → · Contrast checker → · Palette generator →