#3638B7#3638B7

#3638B7 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 43.0% C 0.194 H 273.9°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#3638B7
RGB	rgb(54, 56, 183)
HSL	hsl(239, 54%, 46%)
HSV	hsv(239, 70%, 72%)
CMYK	cmyk(70.5%, 69.4%, 0%, 28.2%)
CIE-LAB	lab(31.88, 40.79, -67.03)
CIE-LCH	lch(31.88, 78.46, 301.33°)
OKLab	oklab(42.97% 0.0133 -0.1937)
OKLCH	oklch(42.97% 0.194 273.9)
XYZ	xyz(11.4799, 7.0304, 45.5426)
Luminance	0.0703 (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

#3638B7 #B7B536

analogous

#3679B7 #3638B7 #7536B7

triadic

#3638B7 #B73638 #38B736

tetradic

#3638B7 #B73679 #B7B536 #36B775

square

#3638B7 #B73679 #B7B536 #36B775

split-complementary

#3638B7 #B77536 #79B736

monochromatic

#1A1B58 #282A88 #3638B7 #5B5DCF #8B8CDD

Accessibility & contrast

On white

8.73

#3638B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3638B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3638B7

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3638B7	#FFFFFF	#000000	##FFFFFF
##3638B7	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BB

Deuteranopia (green-blind)

#0045B5

Tritanopia (blue-blind)

#005B73

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3638b7;
/* rgb */ color: rgb(54, 56, 183);
/* oklch */ color: oklch(43.0% 0.194 273.9);

Tailwind

colors: {
  custom: {
    50: '#7f6fce',
    500: '#3638b7',
    950: '#000000',
  },
}

SCSS

$custom: #3638b7;
$custom-light: #7f6fce;
$custom-dark: #000000;

JSON

{
  "hex": "#3638b7",
  "rgb": {
    "r": 54,
    "g": 56,
    "b": 183
  },
  "hsl": {
    "h": 239.07,
    "s": 54.43,
    "l": 46.471
  },
  "oklch": {
    "l": 0.42973,
    "c": 0.19419,
    "h": 273.9
  },
  "luminance": 0.07032
}

Semantic roles & 50–950 ramp

primary

#3638B7

secondary

#C7C682

accent

#DB4ADE

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3638B7

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

Preview Lab → · Contrast checker → · Palette generator →