#3537CC#3537CC

#3537CC is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.9% C 0.221 H 272.5°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX#3537CC
RGBrgb(53, 55, 204)
HSLhsl(239, 60%, 50%)
HSVhsv(239, 74%, 80%)
CMYKcmyk(74%, 73%, 0%, 20%)
CIE-LABlab(33.66, 48.28, -76.41)
CIE-LCHlch(33.66, 90.39, 302.29°)
OKLaboklab(44.86% 0.0095 -0.2211)
OKLCHoklch(44.86% 0.221 272.5)
XYZxyz(13.7298, 7.8475, 57.9062)
Luminance0.0785 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3537CC #CCCA35
analogous
#3583CC #3537CC #7E35CC
triadic
#3537CC #CC3537 #37CC35
tetradic
#3537CC #CC3583 #CCCA35 #35CC7E
square
#3537CC #CC3583 #CCCA35 #35CC7E
split-complementary
#3537CC #CC7E35 #83CC35
monochromatic
#1B1C6B #27299C #3537CC #6667D8 #9798E5

Accessibility & contrast

On white

8.17
#3537CC on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.57
#3537CC on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3537CC
8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3537CC#FFFFFF#000000##FFFFFF
##3537CC1.008.172.578.17
#FFFFFF8.171.0021.001.00
#0000002.5721.001.0021.00
##FFFFFF8.171.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0056D0
Deuteranopia (green-blind)
#0048C9
Tritanopia (blue-blind)
#00627E
Achromatopsia (no color)
#4F4F4F

Design tokens & code

CSS
--color: #3537cc;
/* rgb */ color: rgb(53, 55, 204);
/* oklch */ color: oklch(44.9% 0.221 272.5);
Tailwind
colors: {
  custom: {
    50: '#846fdd',
    500: '#3537cc',
    950: '#000000',
  },
}
SCSS
$custom: #3537cc;
$custom-light: #846fdd;
$custom-dark: #000000;
JSON
{
  "hex": "#3537cc",
  "rgb": {
    "r": 53,
    "g": 55,
    "b": 204
  },
  "hsl": {
    "h": 239.205,
    "s": 59.684,
    "l": 50.392
  },
  "oklch": {
    "l": 0.44855,
    "c": 0.22133,
    "h": 272.5
  },
  "luminance": 0.07849
}

Semantic roles & 50–950 ramp

primary
#3537CC
secondary
#D0CF8D
accent
#E145E3
background
#F9F6FD
surface
#F1ECFB
border
#CBC7D4
text
#0D0715
muted
#7E7A83

Preview Lab

Preview with #3537CC

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

Preview Lab → · Contrast checker → · Palette generator →

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