#3639AE#3639AE

#3639AE is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.3% C 0.182 H 274.3°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#3639AE
RGB	rgb(54, 57, 174)
HSL	hsl(239, 53%, 45%)
HSV	hsv(239, 69%, 68%)
CMYK	cmyk(69%, 67.2%, 0%, 31.8%)
CIE-LAB	lab(31.27, 37.10, -62.67)
CIE-LCH	lch(31.27, 72.83, 300.62°)
OKLab	oklab(42.28% 0.0137 -0.181)
OKLCH	oklch(42.28% 0.182 274.3)
XYZ	xyz(10.6219, 6.7655, 40.7823)
Luminance	0.0677 (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

#3639AE #AEAB36

analogous

#3675AE #3639AE #6F36AE

triadic

#3639AE #AE3639 #39AE36

tetradic

#3639AE #AE3675 #AEAB36 #36AE6F

square

#3639AE #AE3675 #AEAB36 #36AE6F

split-complementary

#3639AE #AE6F36 #75AE36

monochromatic

#191A51 #282A7F #3639AE #5659CB #8587D9

Accessibility & contrast

On white

8.92

#3639AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#3639AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3639AE

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3639AE	#FFFFFF	#000000	##FFFFFF
##3639AE	1.00	8.92	2.35	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB2

Deuteranopia (green-blind)

#0044AC

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3639ae;
/* rgb */ color: rgb(54, 57, 174);
/* oklch */ color: oklch(42.3% 0.182 274.3);

Tailwind

colors: {
  custom: {
    50: '#7d70c7',
    500: '#3639ae',
    950: '#000000',
  },
}

SCSS

$custom: #3639ae;
$custom-light: #7d70c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3639ae",
  "rgb": {
    "r": 54,
    "g": 57,
    "b": 174
  },
  "hsl": {
    "h": 238.5,
    "s": 52.632,
    "l": 44.706
  },
  "oklch": {
    "l": 0.42278,
    "c": 0.18153,
    "h": 274.3
  },
  "luminance": 0.06767
}

Semantic roles & 50–950 ramp

primary

#3639AE

secondary

#C3C17D

accent

#D84CDC

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3639AE

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

Preview Lab → · Contrast checker → · Palette generator →