#3537BD#3537BD

#3537BD is a dark, highly saturated blue. Relative luminance 0.072; OKLCH L 43.3% C 0.203 H 273.3°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).

Color values

HEX#3537BD
RGBrgb(53, 55, 189)
HSLhsl(239, 56%, 47%)
HSVhsv(239, 72%, 74%)
CMYKcmyk(72%, 70.9%, 0%, 25.9%)
CIE-LABlab(32.17, 43.30, -70.09)
CIE-LCHlch(32.17, 82.38, 301.71°)
OKLaboklab(43.34% 0.0118 -0.2027)
OKLCHoklch(43.34% 0.203 273.3)
XYZxyz(12.0166, 7.1622, 48.8834)
Luminance0.0716 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3537BD #BDBB35
analogous
#357BBD #3537BD #7735BD
triadic
#3537BD #BD3537 #37BD35
tetradic
#3537BD #BD357B #BDBB35 #35BD77
square
#3537BD #BD357B #BDBB35 #35BD77
split-complementary
#3537BD #BD7735 #7BBD35
monochromatic
#1A1B5D #28298D #3537BD #5D5FD2 #8D8EDF

Accessibility & contrast

On white

8.63
#3537BD on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.43
#3537BD on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3537BD
8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3537BD#FFFFFF#000000##FFFFFF
##3537BD1.008.632.438.63
#FFFFFF8.631.0021.001.00
#0000002.4321.001.0021.00
##FFFFFF8.631.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0052C1
Deuteranopia (green-blind)
#0045BB
Tritanopia (blue-blind)
#005C76
Achromatopsia (no color)
#4C4C4C

Design tokens & code

CSS
--color: #3537bd;
/* rgb */ color: rgb(53, 55, 189);
/* oklch */ color: oklch(43.3% 0.203 273.3);
Tailwind
colors: {
  custom: {
    50: '#806fd2',
    500: '#3537bd',
    950: '#000000',
  },
}
SCSS
$custom: #3537bd;
$custom-light: #806fd2;
$custom-dark: #000000;
JSON
{
  "hex": "#3537bd",
  "rgb": {
    "r": 53,
    "g": 55,
    "b": 189
  },
  "hsl": {
    "h": 239.118,
    "s": 56.198,
    "l": 47.451
  },
  "oklch": {
    "l": 0.43344,
    "c": 0.20305,
    "h": 273.3
  },
  "luminance": 0.07163
}

Semantic roles & 50–950 ramp

primary
#3537BD
secondary
#CAC984
accent
#DD48DF
background
#F8F6FD
surface
#F0ECFA
border
#CBC7D3
text
#0C0714
muted
#7D7A83

Preview Lab

Preview with #3537BD

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

Preview Lab → · Contrast checker → · Palette generator →

#3537BD Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva