#3638AA#3638AA

#3638AA is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.7% C 0.177 H 274.8°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#3638AA
RGB	rgb(54, 56, 170)
HSL	hsl(239, 52%, 44%)
HSV	hsv(239, 68%, 67%)
CMYK	cmyk(68.2%, 67.1%, 0%, 33.3%)
CIE-LAB	lab(30.67, 36.34, -61.25)
CIE-LCH	lch(30.67, 71.22, 300.68°)
OKLab	oklab(41.74% 0.0148 -0.1768)
OKLCH	oklch(41.74% 0.177 274.8)
XYZ	xyz(10.1888, 6.5140, 38.7428)
Luminance	0.0651 (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

#3638AA #AAA836

analogous

#3672AA #3638AA #6E36AA

triadic

#3638AA #AA3638 #38AA36

tetradic

#3638AA #AA3672 #AAA836 #36AA6E

square

#3638AA #AA3672 #AAA836 #36AA6E

split-complementary

#3638AA #AA6E36 #72AA36

monochromatic

#18194D #27297C #3638AA #5456C9 #8384D8

Accessibility & contrast

On white

9.12

#3638AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#3638AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3638AA

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3638AA	#FFFFFF	#000000	##FFFFFF
##3638AA	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAE

Deuteranopia (green-blind)

#0043A8

Tritanopia (blue-blind)

#00566C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3638aa;
/* rgb */ color: rgb(54, 56, 170);
/* oklch */ color: oklch(41.7% 0.177 274.8);

Tailwind

colors: {
  custom: {
    50: '#7c6fc4',
    500: '#3638aa',
    950: '#000000',
  },
}

SCSS

$custom: #3638aa;
$custom-light: #7c6fc4;
$custom-dark: #000000;

JSON

{
  "hex": "#3638aa",
  "rgb": {
    "r": 54,
    "g": 56,
    "b": 170
  },
  "hsl": {
    "h": 238.966,
    "s": 51.786,
    "l": 43.922
  },
  "oklch": {
    "l": 0.41737,
    "c": 0.17747,
    "h": 274.8
  },
  "luminance": 0.06515
}

Semantic roles & 50–950 ramp

primary

#3638AA

secondary

#C1C07B

accent

#D94DDB

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3638AA

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

Preview Lab → · Contrast checker → · Palette generator →