#3537B5#3537B5

#3537B5 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.6% C 0.193 H 273.9°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#3537B5
RGB	rgb(53, 55, 181)
HSL	hsl(239, 55%, 46%)
HSV	hsv(239, 71%, 71%)
CMYK	cmyk(70.7%, 69.6%, 0%, 29%)
CIE-LAB	lab(31.40, 40.60, -66.62)
CIE-LCH	lch(31.40, 78.02, 301.36°)
OKLab	oklab(42.56% 0.013 -0.1926)
OKLCH	oklch(42.56% 0.193 273.9)
XYZ	xyz(11.1721, 6.8244, 44.4356)
Luminance	0.0683 (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

#3537B5 #B5B335

analogous

#3577B5 #3537B5 #7335B5

triadic

#3537B5 #B53537 #37B535

tetradic

#3537B5 #B53577 #B5B335 #35B573

square

#3537B5 #B53577 #B5B335 #35B573

split-complementary

#3537B5 #B57335 #77B535

monochromatic

#191A56 #272986 #3537B5 #595BCE #888ADC

Accessibility & contrast

On white

8.88

#3537B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#3537B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3537B5

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3537B5	#FFFFFF	#000000	##FFFFFF
##3537B5	1.00	8.88	2.37	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B9

Deuteranopia (green-blind)

#0044B3

Tritanopia (blue-blind)

#005972

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3537b5;
/* rgb */ color: rgb(53, 55, 181);
/* oklch */ color: oklch(42.6% 0.193 273.9);

Tailwind

colors: {
  custom: {
    50: '#7f6fcc',
    500: '#3537b5',
    950: '#000000',
  },
}

SCSS

$custom: #3537b5;
$custom-light: #7f6fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3537b5",
  "rgb": {
    "r": 53,
    "g": 55,
    "b": 181
  },
  "hsl": {
    "h": 239.063,
    "s": 54.701,
    "l": 45.882
  },
  "oklch": {
    "l": 0.42559,
    "c": 0.19302,
    "h": 273.9
  },
  "luminance": 0.06825
}

Semantic roles & 50–950 ramp

primary

#3537B5

secondary

#C6C580

accent

#DC4ADE

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #3537B5

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

Preview Lab → · Contrast checker → · Palette generator →