#365FB3#365FB3

#365FB3 is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.1% C 0.141 H 262.8°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#365FB3
RGB	rgb(54, 95, 179)
HSL	hsl(220, 54%, 46%)
HSV	hsv(220, 70%, 70%)
CMYK	cmyk(69.8%, 46.9%, 0%, 29.8%)
CIE-LAB	lab(41.57, 14.33, -48.92)
CIE-LCH	lch(41.57, 50.97, 286.32°)
OKLab	oklab(50.11% -0.0177 -0.1401)
OKLCH	oklch(50.11% 0.141 262.8)
XYZ	xyz(13.7473, 12.2220, 44.2737)
Luminance	0.1222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#365FB3 #B38A36

analogous

#369DB3 #365FB3 #4B36B3

triadic

#365FB3 #B3365F #5FB336

tetradic

#365FB3 #B3369D #B38A36 #36B34B

square

#365FB3 #B3369D #B38A36 #36B34B

split-complementary

#365FB3 #B34B36 #9DB336

monochromatic

#1A2D55 #284684 #365FB3 #597FCD #88A3DB

Accessibility & contrast

On white

6.10

#365FB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#365FB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #365FB3

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##365FB3	#FFFFFF	#000000	##FFFFFF
##365FB3	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3368B6

Deuteranopia (green-blind)

#185DB1

Tritanopia (blue-blind)

#007380

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #365fb3;
/* rgb */ color: rgb(54, 95, 179);
/* oklch */ color: oklch(50.1% 0.141 262.8);

Tailwind

colors: {
  custom: {
    50: '#7c8bca',
    500: '#365fb3',
    950: '#000000',
  },
}

SCSS

$custom: #365fb3;
$custom-light: #7c8bca;
$custom-dark: #000000;

JSON

{
  "hex": "#365fb3",
  "rgb": {
    "r": 54,
    "g": 95,
    "b": 179
  },
  "hsl": {
    "h": 220.32,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.50107,
    "c": 0.14124,
    "h": 262.8
  },
  "luminance": 0.12223
}

Semantic roles & 50–950 ramp

primary

#365FB3

secondary

#C5AE80

accent

#AD4BDD

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #365FB3

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

Preview Lab → · Contrast checker → · Palette generator →