#3638BE#3638BE

#3638BE is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 43.7% C 0.203 H 273.5°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#3638BE
RGB	rgb(54, 56, 190)
HSL	hsl(239, 56%, 48%)
HSV	hsv(239, 72%, 75%)
CMYK	cmyk(71.6%, 70.5%, 0%, 25.5%)
CIE-LAB	lab(32.54, 43.16, -70.06)
CIE-LCH	lch(32.54, 82.29, 301.63°)
OKLab	oklab(43.66% 0.0123 -0.2026)
OKLCH	oklch(43.66% 0.203 273.5)
XYZ	xyz(12.2267, 7.3291, 49.4755)
Luminance	0.0733 (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

#3638BE #BEBC36

analogous

#367CBE #3638BE #7836BE

triadic

#3638BE #BE3638 #38BE36

tetradic

#3638BE #BE367C #BEBC36 #36BE78

square

#3638BE #BE367C #BEBC36 #36BE78

split-complementary

#3638BE #BE7836 #7CBE36

monochromatic

#1B1C5F #282A8E #3638BE #6061D2 #8F90DF

Accessibility & contrast

On white

8.52

#3638BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#3638BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3638BE

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3638BE	#FFFFFF	#000000	##FFFFFF
##3638BE	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C2

Deuteranopia (green-blind)

#0046BC

Tritanopia (blue-blind)

#005D77

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3638be;
/* rgb */ color: rgb(54, 56, 190);
/* oklch */ color: oklch(43.7% 0.203 273.5);

Tailwind

colors: {
  custom: {
    50: '#8170d3',
    500: '#3638be',
    950: '#000000',
  },
}

SCSS

$custom: #3638be;
$custom-light: #8170d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3638be",
  "rgb": {
    "r": 54,
    "g": 56,
    "b": 190
  },
  "hsl": {
    "h": 239.118,
    "s": 55.738,
    "l": 47.843
  },
  "oklch": {
    "l": 0.43656,
    "c": 0.20297,
    "h": 273.5
  },
  "luminance": 0.0733
}

Semantic roles & 50–950 ramp

primary

#3638BE

secondary

#CAC986

accent

#DD49DF

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3638BE

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

Preview Lab → · Contrast checker → · Palette generator →