#365DC8#365DC8

#365DC8 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.2% C 0.173 H 265.5°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#365DC8
RGB	rgb(54, 93, 200)
HSL	hsl(224, 57%, 50%)
HSV	hsv(224, 73%, 78%)
CMYK	cmyk(73%, 53.5%, 0%, 21.6%)
CIE-LAB	lab(42.43, 23.39, -59.75)
CIE-LCH	lch(42.43, 64.16, 291.38°)
OKLab	oklab(51.22% -0.0135 -0.172)
OKLCH	oklch(51.22% 0.173 265.5)
XYZ	xyz(15.8573, 12.7814, 56.2637)
Luminance	0.1278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#365DC8 #C8A136

analogous

#36A6C8 #365DC8 #5836C8

triadic

#365DC8 #C8365D #5DC836

tetradic

#365DC8 #C836A6 #C8A136 #36C858

square

#365DC8 #C836A6 #C8A136 #36C858

split-complementary

#365DC8 #C85836 #A6C836

monochromatic

#1C3068 #294798 #365DC8 #6684D6 #96AAE3

Accessibility & contrast

On white

5.90

#365DC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#365DC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #365DC8

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##365DC8	#FFFFFF	#000000	##FFFFFF
##365DC8	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#086BCC

Deuteranopia (green-blind)

#005EC6

Tritanopia (blue-blind)

#007789

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #365dc8;
/* rgb */ color: rgb(54, 93, 200);
/* oklch */ color: oklch(51.2% 0.173 265.5);

Tailwind

colors: {
  custom: {
    50: '#808ad9',
    500: '#365dc8',
    950: '#000000',
  },
}

SCSS

$custom: #365dc8;
$custom-light: #808ad9;
$custom-dark: #000000;

JSON

{
  "hex": "#365dc8",
  "rgb": {
    "r": 54,
    "g": 93,
    "b": 200
  },
  "hsl": {
    "h": 223.973,
    "s": 57.48,
    "l": 49.804
  },
  "oklch": {
    "l": 0.51217,
    "c": 0.17256,
    "h": 265.5
  },
  "luminance": 0.12783
}

Semantic roles & 50–950 ramp

primary

#365DC8

secondary

#CEBC8C

accent

#B847E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #365DC8

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

Preview Lab → · Contrast checker → · Palette generator →