#363DB3#363DB3

#363DB3 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.4% C 0.183 H 273.2°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#363DB3
RGB	rgb(54, 61, 179)
HSL	hsl(237, 54%, 46%)
HSV	hsv(237, 70%, 70%)
CMYK	cmyk(69.8%, 65.9%, 0%, 29.8%)
CIE-LAB	lab(32.65, 36.35, -63.39)
CIE-LCH	lch(32.65, 73.07, 299.83°)
OKLab	oklab(43.42% 0.0104 -0.1831)
OKLCH	oklch(43.42% 0.183 273.2)
XYZ	xyz(11.3240, 7.3753, 43.4659)
Luminance	0.0738 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#363DB3 #B3AC36

analogous

#367BB3 #363DB3 #6D36B3

triadic

#363DB3 #B3363D #3DB336

tetradic

#363DB3 #B3367B #B3AC36 #36B36D

square

#363DB3 #B3367B #B3AC36 #36B36D

split-complementary

#363DB3 #B36D36 #7BB336

monochromatic

#1A1D55 #282D84 #363DB3 #5960CD #888DDB

Accessibility & contrast

On white

8.48

#363DB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#363DB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #363DB3

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##363DB3	#FFFFFF	#000000	##FFFFFF
##363DB3	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B7

Deuteranopia (green-blind)

#0047B1

Tritanopia (blue-blind)

#005C72

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #363db3;
/* rgb */ color: rgb(54, 61, 179);
/* oklch */ color: oklch(43.4% 0.183 273.2);

Tailwind

colors: {
  custom: {
    50: '#7e73cb',
    500: '#363db3',
    950: '#000000',
  },
}

SCSS

$custom: #363db3;
$custom-light: #7e73cb;
$custom-dark: #000000;

JSON

{
  "hex": "#363db3",
  "rgb": {
    "r": 54,
    "g": 61,
    "b": 179
  },
  "hsl": {
    "h": 236.64,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.43419,
    "c": 0.18338,
    "h": 273.2
  },
  "luminance": 0.07376
}

Semantic roles & 50–950 ramp

primary

#363DB3

secondary

#C5C180

accent

#D54BDD

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #363DB3

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

Preview Lab → · Contrast checker → · Palette generator →