#3537BF#3537BF

#3537BF is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 43.5% C 0.206 H 273.2°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#3537BF
RGB	rgb(53, 55, 191)
HSL	hsl(239, 57%, 48%)
HSV	hsv(239, 72%, 75%)
CMYK	cmyk(72.3%, 71.2%, 0%, 25.1%)
CIE-LAB	lab(32.37, 43.98, -70.94)
CIE-LCH	lch(32.37, 83.47, 301.79°)
OKLab	oklab(43.54% 0.0115 -0.2052)
OKLCH	oklch(43.54% 0.206 273.2)
XYZ	xyz(12.2352, 7.2496, 50.0346)
Luminance	0.0725 (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

#3537BF #BFBD35

analogous

#357CBF #3537BF #7835BF

triadic

#3537BF #BF3537 #37BF35

tetradic

#3537BF #BF357C #BFBD35 #35BF78

square

#3537BF #BF357C #BFBD35 #35BF78

split-complementary

#3537BF #BF7835 #7CBF35

monochromatic

#1A1B5F #28298F #3537BF #5F60D3 #8F90E0

Accessibility & contrast

On white

8.57

#3537BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#3537BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3537BF

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3537BF	#FFFFFF	#000000	##FFFFFF
##3537BF	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C3

Deuteranopia (green-blind)

#0045BD

Tritanopia (blue-blind)

#005D77

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3537bf;
/* rgb */ color: rgb(53, 55, 191);
/* oklch */ color: oklch(43.5% 0.206 273.2);

Tailwind

colors: {
  custom: {
    50: '#816fd4',
    500: '#3537bf',
    950: '#000000',
  },
}

SCSS

$custom: #3537bf;
$custom-light: #816fd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3537bf",
  "rgb": {
    "r": 53,
    "g": 55,
    "b": 191
  },
  "hsl": {
    "h": 239.13,
    "s": 56.557,
    "l": 47.843
  },
  "oklch": {
    "l": 0.43543,
    "c": 0.20551,
    "h": 273.2
  },
  "luminance": 0.07251
}

Semantic roles & 50–950 ramp

primary

#3537BF

secondary

#CAC985

accent

#DE48E0

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3537BF

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

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