#3639AF#3639AF

#3639AF is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.4% C 0.183 H 274.3°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#3639AF
RGB	rgb(54, 57, 175)
HSL	hsl(239, 53%, 45%)
HSV	hsv(239, 69%, 69%)
CMYK	cmyk(69.1%, 67.4%, 0%, 31.4%)
CIE-LAB	lab(31.36, 37.44, -63.12)
CIE-LCH	lch(31.36, 73.39, 300.68°)
OKLab	oklab(42.37% 0.0136 -0.1823)
OKLCH	oklch(42.37% 0.183 274.3)
XYZ	xyz(10.7197, 6.8047, 41.2976)
Luminance	0.0681 (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

#3639AF #AFAC36

analogous

#3676AF #3639AF #6F36AF

triadic

#3639AF #AF3639 #39AF36

tetradic

#3639AF #AF3676 #AFAC36 #36AF6F

square

#3639AF #AF3676 #AFAC36 #36AF6F

split-complementary

#3639AF #AF6F36 #76AF36

monochromatic

#191B51 #282A80 #3639AF #575ACB #8688DA

Accessibility & contrast

On white

8.89

#3639AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#3639AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3639AF

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3639AF	#FFFFFF	#000000	##FFFFFF
##3639AF	1.00	8.89	2.36	8.89
#FFFFFF	8.89	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB3

Deuteranopia (green-blind)

#0044AD

Tritanopia (blue-blind)

#00586F

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3639af;
/* rgb */ color: rgb(54, 57, 175);
/* oklch */ color: oklch(42.4% 0.183 274.3);

Tailwind

colors: {
  custom: {
    50: '#7d70c8',
    500: '#3639af',
    950: '#000000',
  },
}

SCSS

$custom: #3639af;
$custom-light: #7d70c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3639af",
  "rgb": {
    "r": 54,
    "g": 57,
    "b": 175
  },
  "hsl": {
    "h": 238.512,
    "s": 52.838,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42372,
    "c": 0.18282,
    "h": 274.3
  },
  "luminance": 0.06806
}

Semantic roles & 50–950 ramp

primary

#3639AF

secondary

#C3C27D

accent

#D94CDC

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3639AF

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

Preview Lab → · Contrast checker → · Palette generator →