#3770C0#3770C0

#3770C0 is a mid, vivid blue. Relative luminance 0.162; OKLCH L 54.8% C 0.139 H 257.4°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX#3770C0
RGBrgb(55, 112, 192)
HSLhsl(215, 55%, 48%)
HSVhsv(215, 71%, 75%)
CMYKcmyk(71.4%, 41.7%, 0%, 24.7%)
CIE-LABlab(47.24, 8.46, -47.39)
CIE-LCHlch(47.24, 48.14, 280.12°)
OKLaboklab(54.75% -0.0303 -0.1353)
OKLCHoklch(54.75% 0.139 257.4)
XYZxyz(16.8807, 16.2045, 52.0971)
Luminance0.1621 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3770C0 #C08737
analogous
#37B5C0 #3770C0 #4237C0
triadic
#3770C0 #C03770 #70C037
tetradic
#3770C0 #C037B5 #C08737 #37C042
square
#3770C0 #C037B5 #C08737 #37C042
split-complementary
#3770C0 #C04237 #B5C037
monochromatic
#1C3861 #295490 #3770C0 #6291D2 #92B2E0

Accessibility & contrast

On white

4.95
#3770C0 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.24
#3770C0 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3770C0
4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3770C0#FFFFFF#000000##FFFFFF
##3770C01.004.954.244.95
#FFFFFF4.951.0021.001.00
#0000004.2421.001.0021.00
##FFFFFF4.951.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4A77C3
Deuteranopia (green-blind)
#336ABE
Tritanopia (blue-blind)
#00838E
Achromatopsia (no color)
#707070

Design tokens & code

CSS
--color: #3770c0;
/* rgb */ color: rgb(55, 112, 192);
/* oklch */ color: oklch(54.8% 0.139 257.4);
Tailwind
colors: {
  custom: {
    50: '#7e98d3',
    500: '#3770c0',
    950: '#000000',
  },
}
SCSS
$custom: #3770c0;
$custom-light: #7e98d3;
$custom-dark: #000000;
JSON
{
  "hex": "#3770c0",
  "rgb": {
    "r": 55,
    "g": 112,
    "b": 192
  },
  "hsl": {
    "h": 215.036,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.5475,
    "c": 0.13869,
    "h": 257.4
  },
  "luminance": 0.16206
}

Semantic roles & 50–950 ramp

primary
#3770C0
secondary
#CBAF88
accent
#A049DF
background
#F8F9FD
surface
#EFF2FA
border
#CACCD3
text
#0B0D14
muted
#7C7E83

Preview Lab

Preview with #3770C0

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

Preview Lab → · Contrast checker → · Palette generator →

#3770C0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva