#3539BC#3539BC

#3539BC is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.6% C 0.200 H 273.1°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX#3539BC
RGBrgb(53, 57, 188)
HSLhsl(238, 56%, 47%)
HSVhsv(238, 72%, 74%)
CMYKcmyk(71.8%, 69.7%, 0%, 26.3%)
CIE-LABlab(32.51, 41.78, -68.94)
CIE-LCHlch(32.51, 80.62, 301.22°)
OKLaboklab(43.56% 0.0108 -0.1994)
OKLCHoklch(43.56% 0.2 273.1)
XYZxyz(12.0054, 7.3128, 48.3460)
Luminance0.0731 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3539BC #BCB835
analogous
#357DBC #3539BC #7435BC
triadic
#3539BC #BC3539 #39BC35
tetradic
#3539BC #BC357D #BCB835 #35BC74
square
#3539BC #BC357D #BCB835 #35BC74
split-complementary
#3539BC #BC7435 #7DBC35
monochromatic
#1A1C5D #282B8C #3539BC #5D60D1 #8D8FDF

Accessibility & contrast

On white

8.53
#3539BC on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.46
#3539BC on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3539BC
8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3539BC#FFFFFF#000000##FFFFFF
##3539BC1.008.532.468.53
#FFFFFF8.531.0021.001.00
#0000002.4621.001.0021.00
##FFFFFF8.531.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0053C0
Deuteranopia (green-blind)
#0046BA
Tritanopia (blue-blind)
#005D76
Achromatopsia (no color)
#4C4C4C

Design tokens & code

CSS
--color: #3539bc;
/* rgb */ color: rgb(53, 57, 188);
/* oklch */ color: oklch(43.6% 0.200 273.1);
Tailwind
colors: {
  custom: {
    50: '#8070d1',
    500: '#3539bc',
    950: '#000000',
  },
}
SCSS
$custom: #3539bc;
$custom-light: #8070d1;
$custom-dark: #000000;
JSON
{
  "hex": "#3539bc",
  "rgb": {
    "r": 53,
    "g": 57,
    "b": 188
  },
  "hsl": {
    "h": 238.222,
    "s": 56.017,
    "l": 47.255
  },
  "oklch": {
    "l": 0.43556,
    "c": 0.19966,
    "h": 273.1
  },
  "luminance": 0.07314
}

Semantic roles & 50–950 ramp

primary
#3539BC
secondary
#C9C784
accent
#DB48DF
background
#F8F6FD
surface
#F0ECFA
border
#CBC7D3
text
#0C0714
muted
#7D7A83

Preview Lab

Preview with #3539BC

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

Preview Lab → · Contrast checker → · Palette generator →

#3539BC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva