#365DA4#365DA4

#365DA4 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.7% C 0.123 H 261.3°. Best body text is #FFFFFF at 6.44:1 contrast (WCAG AA passes).

Color values

HEX	#365DA4
RGB	rgb(54, 93, 164)
HSL	hsl(219, 50%, 43%)
HSV	hsv(219, 67%, 64%)
CMYK	cmyk(67.1%, 43.3%, 0%, 35.7%)
CIE-LAB	lab(40.07, 10.09, -42.46)
CIE-LCH	lch(40.07, 43.64, 283.37°)
OKLab	oklab(48.66% -0.0184 -0.1212)
OKLCH	oklch(48.66% 0.123 261.3)
XYZ	xyz(12.1341, 11.2921, 36.6549)
Luminance	0.1129 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#365DA4 #A47D36

analogous

#3694A4 #365DA4 #4636A4

triadic

#365DA4 #A4365D #5DA436

tetradic

#365DA4 #A43694 #A47D36 #36A446

square

#365DA4 #A43694 #A47D36 #36A446

split-complementary

#365DA4 #A44636 #94A436

monochromatic

#182948 #274376 #365DA4 #517BC6 #7F9ED5

Accessibility & contrast

On white

6.44

#365DA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#365DA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #365DA4

6.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##365DA4	#FFFFFF	#000000	##FFFFFF
##365DA4	1.00	6.44	3.26	6.44
#FFFFFF	6.44	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C64A7

Deuteranopia (green-blind)

#2A5AA3

Tritanopia (blue-blind)

#006D78

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #365da4;
/* rgb */ color: rgb(54, 93, 164);
/* oklch */ color: oklch(48.7% 0.123 261.3);

Tailwind

colors: {
  custom: {
    50: '#798abf',
    500: '#365da4',
    950: '#000000',
  },
}

SCSS

$custom: #365da4;
$custom-light: #798abf;
$custom-dark: #000000;

JSON

{
  "hex": "#365da4",
  "rgb": {
    "r": 54,
    "g": 93,
    "b": 164
  },
  "hsl": {
    "h": 218.727,
    "s": 50.459,
    "l": 42.745
  },
  "oklch": {
    "l": 0.48655,
    "c": 0.12258,
    "h": 261.3
  },
  "luminance": 0.11293
}

Semantic roles & 50–950 ramp

primary

#365DA4

secondary

#BEA578

accent

#A84EDA

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #365DA4

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

Preview Lab → · Contrast checker → · Palette generator →