#365DB3#365DB3

#365DB3 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.7% C 0.144 H 263.7°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#365DB3
RGB	rgb(54, 93, 179)
HSL	hsl(221, 54%, 46%)
HSV	hsv(221, 70%, 70%)
CMYK	cmyk(69.8%, 48%, 0%, 29.8%)
CIE-LAB	lab(41.00, 15.62, -49.82)
CIE-LCH	lch(41.00, 52.21, 287.41°)
OKLab	oklab(49.68% -0.0159 -0.1428)
OKLCH	oklch(49.68% 0.144 263.7)
XYZ	xyz(13.5695, 11.8663, 44.2144)
Luminance	0.1187 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#365DB3 #B38C36

analogous

#369BB3 #365DB3 #4D36B3

triadic

#365DB3 #B3365D #5DB336

tetradic

#365DB3 #B3369B #B38C36 #36B34D

square

#365DB3 #B3369B #B38C36 #36B34D

split-complementary

#365DB3 #B34D36 #9BB336

monochromatic

#1A2C55 #284584 #365DB3 #597DCD #88A2DB

Accessibility & contrast

On white

6.22

#365DB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#365DB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #365DB3

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##365DB3	#FFFFFF	#000000	##FFFFFF
##365DB3	1.00	6.22	3.37	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F67B6

Deuteranopia (green-blind)

#105BB1

Tritanopia (blue-blind)

#00717F

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #365db3;
/* rgb */ color: rgb(54, 93, 179);
/* oklch */ color: oklch(49.7% 0.144 263.7);

Tailwind

colors: {
  custom: {
    50: '#7c8aca',
    500: '#365db3',
    950: '#000000',
  },
}

SCSS

$custom: #365db3;
$custom-light: #7c8aca;
$custom-dark: #000000;

JSON

{
  "hex": "#365db3",
  "rgb": {
    "r": 54,
    "g": 93,
    "b": 179
  },
  "hsl": {
    "h": 221.28,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.49675,
    "c": 0.1437,
    "h": 263.7
  },
  "luminance": 0.11868
}

Semantic roles & 50–950 ramp

primary

#365DB3

secondary

#C5AF80

accent

#AF4BDD

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #365DB3

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

Preview Lab → · Contrast checker → · Palette generator →