#3633BF#3633BF

#3633BF is a dark, highly saturated blue. Relative luminance 0.069; OKLCH L 43.0% C 0.209 H 274.1°. Best body text is #FFFFFF at 8.81:1 contrast (WCAG AA passes).

Color values

HEX	#3633BF
RGB	rgb(54, 51, 191)
HSL	hsl(241, 58%, 47%)
HSV	hsv(241, 73%, 75%)
CMYK	cmyk(71.7%, 73.3%, 0%, 25.1%)
CIE-LAB	lab(31.61, 46.37, -72.20)
CIE-LCH	lch(31.61, 85.80, 302.71°)
OKLab	oklab(43.02% 0.0148 -0.2088)
OKLCH	oklch(43.02% 0.209 274.1)
XYZ	xyz(12.1060, 6.9123, 49.9763)
Luminance	0.0691 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 4.18

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3633BF #BCBF33

analogous

#3376BF #3633BF #7C33BF

triadic

#3633BF #BF3633 #33BF36

tetradic

#3633BF #BF3376 #BCBF33 #33BF7C

square

#3633BF #BF3376 #BCBF33 #33BF7C

split-complementary

#3633BF #BF7C33 #76BF33

monochromatic

#1B195E #28268F #3633BF #5E5CD3 #8E8CE0

Accessibility & contrast

On white

8.81

#3633BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#3633BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3633BF

8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3633BF	#FFFFFF	#000000	##FFFFFF
##3633BF	1.00	8.81	2.38	8.81
#FFFFFF	8.81	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051C3

Deuteranopia (green-blind)

#0044BC

Tritanopia (blue-blind)

#005B76

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3633bf;
/* rgb */ color: rgb(54, 51, 191);
/* oklch */ color: oklch(43.0% 0.209 274.1);

Tailwind

colors: {
  custom: {
    50: '#826cd4',
    500: '#3633bf',
    950: '#000000',
  },
}

SCSS

$custom: #3633bf;
$custom-light: #826cd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3633bf",
  "rgb": {
    "r": 54,
    "g": 51,
    "b": 191
  },
  "hsl": {
    "h": 241.286,
    "s": 57.851,
    "l": 47.451
  },
  "oklch": {
    "l": 0.43015,
    "c": 0.20934,
    "h": 274.1
  },
  "luminance": 0.06914
}

Semantic roles & 50–950 ramp

primary

#3633BF

secondary

#C9CB83

accent

#E147DE

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3633BF

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

Preview Lab → · Contrast checker → · Palette generator →