#3C37BB#3C37BB

#3C37BB is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.6% C 0.199 H 275.9°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX#3C37BB
RGBrgb(60, 55, 187)
HSLhsl(242, 55%, 47%)
HSVhsv(242, 71%, 73%)
CMYKcmyk(67.9%, 70.6%, 0%, 26.7%)
CIE-LABlab(32.44, 43.42, -68.46)
CIE-LCHlch(32.44, 81.07, 302.39°)
OKLaboklab(43.59% 0.0206 -0.1978)
OKLCHoklch(43.59% 0.199 275.9)
XYZxyz(12.1964, 7.2798, 47.7665)
Luminance0.0728 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3C37BB #B6BB37
analogous
#3774BB #3C37BB #7E37BB
triadic
#3C37BB #BB3C37 #37BB3C
tetradic
#3C37BB #BB3774 #B6BB37 #37BB7E
square
#3C37BB #BB3774 #B6BB37 #37BB7E
split-complementary
#3C37BB #BB7E37 #74BB37
monochromatic
#1E1B5C #2D298C #3C37BB #635FD0 #918EDE

Accessibility & contrast

On white

8.55
#3C37BB on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.46
#3C37BB on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3C37BB
8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3C37BB#FFFFFF#000000##FFFFFF
##3C37BB1.008.552.468.55
#FFFFFF8.551.0021.001.00
#0000002.4621.001.0021.00
##FFFFFF8.551.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0052BF
Deuteranopia (green-blind)
#0046B9
Tritanopia (blue-blind)
#005B75
Achromatopsia (no color)
#4C4C4C

Design tokens & code

CSS
--color: #3c37bb;
/* rgb */ color: rgb(60, 55, 187);
/* oklch */ color: oklch(43.6% 0.199 275.9);
Tailwind
colors: {
  custom: {
    50: '#836fd1',
    500: '#3c37bb',
    950: '#000000',
  },
}
SCSS
$custom: #3c37bb;
$custom-light: #836fd1;
$custom-dark: #000000;
JSON
{
  "hex": "#3c37bb",
  "rgb": {
    "r": 60,
    "g": 55,
    "b": 187
  },
  "hsl": {
    "h": 242.273,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.43594,
    "c": 0.19884,
    "h": 275.9
  },
  "luminance": 0.07281
}

Semantic roles & 50–950 ramp

primary
#3C37BB
secondary
#C6C985
accent
#DE4AD8
background
#F8F6FD
surface
#F0ECFA
border
#CBC7D3
text
#0C0714
muted
#7D7A83

Preview Lab

Preview with #3C37BB

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

Preview Lab → · Contrast checker → · Palette generator →

#3C37BB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva