#365BB8#365BB8

#365BB8 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.6% C 0.153 H 265.0°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#365BB8
RGB	rgb(54, 91, 184)
HSL	hsl(223, 55%, 47%)
HSV	hsv(223, 71%, 72%)
CMYK	cmyk(70.7%, 50.5%, 0%, 27.8%)
CIE-LAB	lab(40.78, 18.77, -53.12)
CIE-LCH	lch(40.78, 56.34, 289.46°)
OKLab	oklab(49.61% -0.0134 -0.1525)
OKLCH	oklch(49.61% 0.153 265)
XYZ	xyz(13.9111, 11.7257, 46.8683)
Luminance	0.1173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#365BB8 #B89336

analogous

#369CB8 #365BB8 #5236B8

triadic

#365BB8 #B8365B #5BB836

tetradic

#365BB8 #B8369C #B89336 #36B852

square

#365BB8 #B8369C #B89336 #36B852

split-complementary

#365BB8 #B85236 #9CB836

monochromatic

#1A2C59 #284489 #365BB8 #5C7DCF #8BA3DD

Accessibility & contrast

On white

6.28

#365BB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#365BB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #365BB8

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##365BB8	#FFFFFF	#000000	##FFFFFF
##365BB8	1.00	6.28	3.35	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2466BB

Deuteranopia (green-blind)

#005AB6

Tritanopia (blue-blind)

#007181

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #365bb8;
/* rgb */ color: rgb(54, 91, 184);
/* oklch */ color: oklch(49.6% 0.153 265.0);

Tailwind

colors: {
  custom: {
    50: '#7d88ce',
    500: '#365bb8',
    950: '#000000',
  },
}

SCSS

$custom: #365bb8;
$custom-light: #7d88ce;
$custom-dark: #000000;

JSON

{
  "hex": "#365bb8",
  "rgb": {
    "r": 54,
    "g": 91,
    "b": 184
  },
  "hsl": {
    "h": 222.923,
    "s": 54.622,
    "l": 46.667
  },
  "oklch": {
    "l": 0.49608,
    "c": 0.15314,
    "h": 265
  },
  "luminance": 0.11727
}

Semantic roles & 50–950 ramp

primary

#365BB8

secondary

#C7B482

accent

#B44ADE

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #365BB8

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

Preview Lab → · Contrast checker → · Palette generator →