#3636B9#3636B9

#3636B9 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.9% C 0.199 H 274.1°. Best body text is #FFFFFF at 8.81:1 contrast (WCAG AA passes).

Color values

HEX	#3636B9
RGB	rgb(54, 54, 185)
HSL	hsl(240, 55%, 47%)
HSV	hsv(240, 71%, 73%)
CMYK	cmyk(70.8%, 70.8%, 0%, 27.5%)
CIE-LAB	lab(31.63, 42.66, -68.61)
CIE-LCH	lch(31.63, 80.79, 301.87°)
OKLab	oklab(42.86% 0.0142 -0.1984)
OKLCH	oklch(42.86% 0.199 274.1)
XYZ	xyz(11.5945, 6.9243, 46.6150)
Luminance	0.0693 (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

#3636B9 #B9B936

analogous

#3678B9 #3636B9 #7836B9

triadic

#3636B9 #B93636 #36B936

tetradic

#3636B9 #B93678 #B9B936 #36B978

square

#3636B9 #B93678 #B9B936 #36B978

split-complementary

#3636B9 #B97836 #78B936

monochromatic

#1A1A5A #28288A #3636B9 #5D5DD0 #8C8CDD

Accessibility & contrast

On white

8.81

#3636B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#3636B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3636B9

8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3636B9	#FFFFFF	#000000	##FFFFFF
##3636B9	1.00	8.81	2.39	8.81
#FFFFFF	8.81	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BD

Deuteranopia (green-blind)

#0044B7

Tritanopia (blue-blind)

#005A74

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3636b9;
/* rgb */ color: rgb(54, 54, 185);
/* oklch */ color: oklch(42.9% 0.199 274.1);

Tailwind

colors: {
  custom: {
    50: '#806ecf',
    500: '#3636b9',
    950: '#000000',
  },
}

SCSS

$custom: #3636b9;
$custom-light: #806ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#3636b9",
  "rgb": {
    "r": 54,
    "g": 54,
    "b": 185
  },
  "hsl": {
    "h": 240,
    "s": 54.812,
    "l": 46.863
  },
  "oklch": {
    "l": 0.42857,
    "c": 0.19887,
    "h": 274.1
  },
  "luminance": 0.06925
}

Semantic roles & 50–950 ramp

primary

#3636B9

secondary

#C8C883

accent

#DE4ADE

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3636B9

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

Preview Lab → · Contrast checker → · Palette generator →