#3533BB#3533BB

#3533BB is a dark, highly saturated blue. Relative luminance 0.067; OKLCH L 42.5% C 0.205 H 274.0°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#3533BB
RGB	rgb(53, 51, 187)
HSL	hsl(241, 57%, 47%)
HSV	hsv(241, 73%, 73%)
CMYK	cmyk(71.7%, 72.7%, 0%, 26.7%)
CIE-LAB	lab(31.14, 44.96, -70.61)
CIE-LCH	lch(31.14, 83.70, 302.49°)
OKLab	oklab(42.55% 0.0143 -0.2042)
OKLCH	oklch(42.55% 0.205 274)
XYZ	xyz(11.6187, 6.7113, 47.6872)
Luminance	0.0671 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 3.74

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3533BB #B9BB33

analogous

#3375BB #3533BB #7933BB

triadic

#3533BB #BB3533 #33BB35

tetradic

#3533BB #BB3375 #B9BB33 #33BB79

square

#3533BB #BB3375 #B9BB33 #33BB79

split-complementary

#3533BB #BB7933 #75BB33

monochromatic

#1A195B #27268B #3533BB #5B59D2 #8B89DF

Accessibility & contrast

On white

8.97

#3533BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#3533BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3533BB

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3533BB	#FFFFFF	#000000	##FFFFFF
##3533BB	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050BF

Deuteranopia (green-blind)

#0043B9

Tritanopia (blue-blind)

#005A74

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3533bb;
/* rgb */ color: rgb(53, 51, 187);
/* oklch */ color: oklch(42.5% 0.205 274.0);

Tailwind

colors: {
  custom: {
    50: '#806cd1',
    500: '#3533bb',
    950: '#000000',
  },
}

SCSS

$custom: #3533bb;
$custom-light: #806cd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3533bb",
  "rgb": {
    "r": 53,
    "g": 51,
    "b": 187
  },
  "hsl": {
    "h": 240.882,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.42546,
    "c": 0.2047,
    "h": 274
  },
  "luminance": 0.06712
}

Semantic roles & 50–950 ramp

primary

#3533BB

secondary

#C8C981

accent

#E047DE

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3533BB

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

Preview Lab → · Contrast checker → · Palette generator →