#3634B9#3634B9

#3634B9 is a dark, highly saturated blue. Relative luminance 0.067; OKLCH L 42.6% C 0.201 H 274.4°. Best body text is #FFFFFF at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#3634B9
RGB	rgb(54, 52, 185)
HSL	hsl(241, 56%, 46%)
HSV	hsv(241, 72%, 73%)
CMYK	cmyk(70.8%, 71.9%, 0%, 27.5%)
CIE-LAB	lab(31.21, 43.82, -69.30)
CIE-LCH	lch(31.21, 82.00, 302.31°)
OKLab	oklab(42.56% 0.0153 -0.2004)
OKLCH	oklch(42.56% 0.201 274.4)
XYZ	xyz(11.5034, 6.7419, 46.5846)
Luminance	0.0674 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 3.52

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3634B9 #B7B934

analogous

#3475B9 #3634B9 #7934B9

triadic

#3634B9 #B93634 #34B936

tetradic

#3634B9 #B93475 #B7B934 #34B979

square

#3634B9 #B93475 #B7B934 #34B979

split-complementary

#3634B9 #B97934 #75B934

monochromatic

#1A1959 #282789 #3634B9 #5B5AD1 #8B89DE

Accessibility & contrast

On white

8.94

#3634B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#3634B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3634B9

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3634B9	#FFFFFF	#000000	##FFFFFF
##3634B9	1.00	8.94	2.35	8.94
#FFFFFF	8.94	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050BD

Deuteranopia (green-blind)

#0043B7

Tritanopia (blue-blind)

#005973

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3634b9;
/* rgb */ color: rgb(54, 52, 185);
/* oklch */ color: oklch(42.6% 0.201 274.4);

Tailwind

colors: {
  custom: {
    50: '#806dcf',
    500: '#3634b9',
    950: '#000000',
  },
}

SCSS

$custom: #3634b9;
$custom-light: #806dcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3634b9",
  "rgb": {
    "r": 54,
    "g": 52,
    "b": 185
  },
  "hsl": {
    "h": 240.902,
    "s": 56.118,
    "l": 46.471
  },
  "oklch": {
    "l": 0.42555,
    "c": 0.20097,
    "h": 274.4
  },
  "luminance": 0.06743
}

Semantic roles & 50–950 ramp

primary

#3634B9

secondary

#C7C881

accent

#DF48DD

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3634B9

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

Preview Lab → · Contrast checker → · Palette generator →