#3638CA#3638CA

#3638CA is a dark, highly saturated blue. Relative luminance 0.079; OKLCH L 44.9% C 0.218 H 272.8°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#3638CA
RGB	rgb(54, 56, 202)
HSL	hsl(239, 58%, 50%)
HSV	hsv(239, 73%, 79%)
CMYK	cmyk(73.3%, 72.3%, 0%, 20.8%)
CIE-LAB	lab(33.72, 47.15, -75.15)
CIE-LCH	lch(33.72, 88.72, 302.11°)
OKLab	oklab(44.85% 0.0105 -0.2174)
OKLCH	oklch(44.85% 0.218 272.8)
XYZ	xyz(13.5926, 7.8755, 56.6694)
Luminance	0.0788 (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

#3638CA #CAC836

analogous

#3682CA #3638CA #7E36CA

triadic

#3638CA #CA3638 #38CA36

tetradic

#3638CA #CA3682 #CAC836 #36CA7E

square

#3638CA #CA3682 #CAC836 #36CA7E

split-complementary

#3638CA #CA7E36 #82CA36

monochromatic

#1C1D6A #292A9A #3638CA #6668D7 #9798E4

Accessibility & contrast

On white

8.15

#3638CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3638CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3638CA

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3638CA	#FFFFFF	#000000	##FFFFFF
##3638CA	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056CE

Deuteranopia (green-blind)

#0048C7

Tritanopia (blue-blind)

#00627E

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3638ca;
/* rgb */ color: rgb(54, 56, 202);
/* oklch */ color: oklch(44.9% 0.218 272.8);

Tailwind

colors: {
  custom: {
    50: '#8470db',
    500: '#3638ca',
    950: '#000000',
  },
}

SCSS

$custom: #3638ca;
$custom-light: #8470db;
$custom-dark: #000000;

JSON

{
  "hex": "#3638ca",
  "rgb": {
    "r": 54,
    "g": 56,
    "b": 202
  },
  "hsl": {
    "h": 239.189,
    "s": 58.268,
    "l": 50.196
  },
  "oklch": {
    "l": 0.44853,
    "c": 0.21769,
    "h": 272.8
  },
  "luminance": 0.07877
}

Semantic roles & 50–950 ramp

primary

#3638CA

secondary

#CFCE8D

accent

#DF46E1

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0D0715

muted

#7D7A83

Preview Lab

Preview with #3638CA

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

Preview Lab → · Contrast checker → · Palette generator →