#3638AF#3638AF

#3638AF is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.2% C 0.184 H 274.4°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#3638AF
RGB	rgb(54, 56, 175)
HSL	hsl(239, 53%, 45%)
HSV	hsv(239, 69%, 69%)
CMYK	cmyk(69.1%, 68%, 0%, 31.4%)
CIE-LAB	lab(31.13, 38.06, -63.49)
CIE-LCH	lch(31.13, 74.03, 300.94°)
OKLab	oklab(42.21% 0.0143 -0.1834)
OKLCH	oklch(42.21% 0.184 274.4)
XYZ	xyz(10.6708, 6.7068, 41.2813)
Luminance	0.0671 (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

#3638AF #AFAD36

analogous

#3675AF #3638AF #7036AF

triadic

#3638AF #AF3638 #38AF36

tetradic

#3638AF #AF3675 #AFAD36 #36AF70

square

#3638AF #AF3675 #AFAD36 #36AF70

split-complementary

#3638AF #AF7036 #75AF36

monochromatic

#191A51 #282980 #3638AF #5759CB #8687DA

Accessibility & contrast

On white

8.97

#3638AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#3638AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3638AF

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3638AF	#FFFFFF	#000000	##FFFFFF
##3638AF	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB3

Deuteranopia (green-blind)

#0044AD

Tritanopia (blue-blind)

#00586F

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3638af;
/* rgb */ color: rgb(54, 56, 175);
/* oklch */ color: oklch(42.2% 0.184 274.4);

Tailwind

colors: {
  custom: {
    50: '#7e6fc8',
    500: '#3638af',
    950: '#000000',
  },
}

SCSS

$custom: #3638af;
$custom-light: #7e6fc8;
$custom-dark: #000000;

JSON

{
  "hex": "#3638af",
  "rgb": {
    "r": 54,
    "g": 56,
    "b": 175
  },
  "hsl": {
    "h": 239.008,
    "s": 52.838,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42207,
    "c": 0.18397,
    "h": 274.4
  },
  "luminance": 0.06708
}

Semantic roles & 50–950 ramp

primary

#3638AF

secondary

#C3C27D

accent

#DA4CDC

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3638AF

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

Preview Lab → · Contrast checker → · Palette generator →