#387EB5#387EB5

#387EB5 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.4% C 0.110 H 245.2°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX#387EB5
RGBrgb(56, 126, 181)
HSLhsl(206, 53%, 46%)
HSVhsv(206, 69%, 71%)
CMYKcmyk(69.1%, 30.4%, 0%, 29%)
CIE-LABlab(50.80, -3.87, -35.41)
CIE-LCHlch(50.80, 35.62, 263.77°)
OKLaboklab(57.36% -0.0462 -0.1001)
OKLCHoklch(57.36% 0.11 245.2)
XYZxyz(17.4291, 19.0968, 46.4746)
Luminance0.1910 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#387EB5 #B56F38
analogous
#38B5AE #387EB5 #3840B5
triadic
#387EB5 #B5387E #7EB538
tetradic
#387EB5 #AE38B5 #B56F38 #40B538
square
#387EB5 #AE38B5 #B56F38 #40B538
split-complementary
#387EB5 #B53840 #B5AE38
monochromatic
#1B3D58 #2A5D86 #387EB5 #5D9CCD #8CB8DB

Accessibility & contrast

On white

4.36
#387EB5 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.82
#387EB5 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #387EB5
4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##387EB5#FFFFFF#000000##000000
##387EB51.004.364.824.82
#FFFFFF4.361.0021.0021.00
#0000004.8221.001.001.00
##0000004.8221.001.001.00

Color blindness preview

Protanopia (red-blind)
#6580B7
Deuteranopia (green-blind)
#5474B4
Tritanopia (blue-blind)
#008B91
Achromatopsia (no color)
#797979

Design tokens & code

CSS
--color: #387eb5;
/* rgb */ color: rgb(56, 126, 181);
/* oklch */ color: oklch(57.4% 0.110 245.2);
Tailwind
colors: {
  custom: {
    50: '#7da3cb',
    500: '#387eb5',
    950: '#000000',
  },
}
SCSS
$custom: #387eb5;
$custom-light: #7da3cb;
$custom-dark: #000000;
JSON
{
  "hex": "#387eb5",
  "rgb": {
    "r": 56,
    "g": 126,
    "b": 181
  },
  "hsl": {
    "h": 206.4,
    "s": 52.743,
    "l": 46.471
  },
  "oklch": {
    "l": 0.57356,
    "c": 0.11025,
    "h": 245.2
  },
  "luminance": 0.19099
}

Semantic roles & 50–950 ramp

primary
#387EB5
secondary
#C6A083
accent
#8B4CDC
background
#F8FAFC
surface
#EFF3F8
border
#CACDD1
text
#0B0F13
muted
#7C7F82

Preview Lab

Preview with #387EB5

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

Preview Lab → · Contrast checker → · Palette generator →

#387EB5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva