#365CB0#365CB0

#365CB0 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.2% C 0.141 H 263.7°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#365CB0
RGB	rgb(54, 92, 176)
HSL	hsl(221, 53%, 45%)
HSV	hsv(221, 69%, 69%)
CMYK	cmyk(69.3%, 47.7%, 0%, 31%)
CIE-LAB	lab(40.53, 15.16, -48.82)
CIE-LCH	lch(40.53, 51.12, 287.25°)
OKLab	oklab(49.25% -0.0154 -0.1399)
OKLCH	oklch(49.25% 0.141 263.7)
XYZ	xyz(13.1822, 11.5718, 42.6047)
Luminance	0.1157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#365CB0 #B08A36

analogous

#3699B0 #365CB0 #4D36B0

triadic

#365CB0 #B0365C #5CB036

tetradic

#365CB0 #B03699 #B08A36 #36B04D

square

#365CB0 #B03699 #B08A36 #36B04D

split-complementary

#365CB0 #B04D36 #99B036

monochromatic

#192B52 #284481 #365CB0 #587CCC #86A0DA

Accessibility & contrast

On white

6.34

#365CB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#365CB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #365CB0

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##365CB0	#FFFFFF	#000000	##FFFFFF
##365CB0	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3065B3

Deuteranopia (green-blind)

#135AAE

Tritanopia (blue-blind)

#00707D

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #365cb0;
/* rgb */ color: rgb(54, 92, 176);
/* oklch */ color: oklch(49.2% 0.141 263.7);

Tailwind

colors: {
  custom: {
    50: '#7b89c8',
    500: '#365cb0',
    950: '#000000',
  },
}

SCSS

$custom: #365cb0;
$custom-light: #7b89c8;
$custom-dark: #000000;

JSON

{
  "hex": "#365cb0",
  "rgb": {
    "r": 54,
    "g": 92,
    "b": 176
  },
  "hsl": {
    "h": 221.311,
    "s": 53.043,
    "l": 45.098
  },
  "oklch": {
    "l": 0.49248,
    "c": 0.14074,
    "h": 263.7
  },
  "luminance": 0.11573
}

Semantic roles & 50–950 ramp

primary

#365CB0

secondary

#C4AE7E

accent

#AF4BDC

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #365CB0

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

Preview Lab → · Contrast checker → · Palette generator →