#365EB3#365EB3

#365EB3 is a mid, vivid blue. Relative luminance 0.120; OKLCH L 49.9% C 0.142 H 263.2°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#365EB3
RGB	rgb(54, 94, 179)
HSL	hsl(221, 54%, 46%)
HSV	hsv(221, 70%, 70%)
CMYK	cmyk(69.8%, 47.5%, 0%, 29.8%)
CIE-LAB	lab(41.28, 14.97, -49.37)
CIE-LCH	lch(41.28, 51.59, 286.87°)
OKLab	oklab(49.89% -0.0168 -0.1415)
OKLCH	oklch(49.89% 0.142 263.2)
XYZ	xyz(13.6578, 12.0430, 44.2438)
Luminance	0.1204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#365EB3 #B38B36

analogous

#369CB3 #365EB3 #4C36B3

triadic

#365EB3 #B3365E #5EB336

tetradic

#365EB3 #B3369C #B38B36 #36B34C

square

#365EB3 #B3369C #B38B36 #36B34C

split-complementary

#365EB3 #B34C36 #9CB336

monochromatic

#1A2D55 #284584 #365EB3 #597ECD #88A3DB

Accessibility & contrast

On white

6.16

#365EB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#365EB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #365EB3

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##365EB3	#FFFFFF	#000000	##FFFFFF
##365EB3	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3167B6

Deuteranopia (green-blind)

#145CB1

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #365eb3;
/* rgb */ color: rgb(54, 94, 179);
/* oklch */ color: oklch(49.9% 0.142 263.2);

Tailwind

colors: {
  custom: {
    50: '#7c8bca',
    500: '#365eb3',
    950: '#000000',
  },
}

SCSS

$custom: #365eb3;
$custom-light: #7c8bca;
$custom-dark: #000000;

JSON

{
  "hex": "#365eb3",
  "rgb": {
    "r": 54,
    "g": 94,
    "b": 179
  },
  "hsl": {
    "h": 220.8,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.4989,
    "c": 0.14247,
    "h": 263.2
  },
  "luminance": 0.12044
}

Semantic roles & 50–950 ramp

primary

#365EB3

secondary

#C5AF80

accent

#AE4BDD

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #365EB3

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

Preview Lab → · Contrast checker → · Palette generator →