#3A8FDB#3A8FDB

#3A8FDB is a light, vivid cyan. Relative luminance 0.257; OKLCH L 63.4% C 0.140 H 248.9°. Best body text is #000000 at 6.13:1 contrast (WCAG AA passes).

Color values

HEX#3A8FDB
RGBrgb(58, 143, 219)
HSLhsl(208, 69%, 54%)
HSVhsv(208, 74%, 86%)
CMYKcmyk(73.5%, 34.7%, 0%, 14.1%)
CIE-LABlab(57.71, -0.16, -46.08)
CIE-LCHlch(57.71, 46.08, 269.80°)
OKLaboklab(63.42% -0.0505 -0.131)
OKLCHoklch(63.42% 0.14 248.9)
XYZxyz(24.3487, 25.6562, 70.6730)
Luminance0.2566 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3A8FDB #DB863A
analogous
#3ADBD7 #3A8FDB #3A3FDB
triadic
#3A8FDB #DB3A8F #8FDB3A
tetradic
#3A8FDB #D73ADB #DB863A #3FDB3A
square
#3A8FDB #D73ADB #DB863A #3FDB3A
split-complementary
#3A8FDB #DB3A3F #DBD73A
monochromatic
#185083 #2170B6 #3A8FDB #6EACE4 #A1CAEE

Accessibility & contrast

On white

3.42
#3A8FDB on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.13
#3A8FDB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3A8FDB
6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3A8FDB#FFFFFF#000000##000000
##3A8FDB1.003.426.136.13
#FFFFFF3.421.0021.0021.00
#0000006.1321.001.001.00
##0000006.1321.001.001.00

Color blindness preview

Protanopia (red-blind)
#6C93DE
Deuteranopia (green-blind)
#5584DA
Tritanopia (blue-blind)
#00A1AB
Achromatopsia (no color)
#8B8B8B

Design tokens & code

CSS
--color: #3a8fdb;
/* rgb */ color: rgb(58, 143, 219);
/* oklch */ color: oklch(63.4% 0.140 248.9);
Tailwind
colors: {
  custom: {
    50: '#84afe6',
    500: '#3a8fdb',
    950: '#000000',
  },
}
SCSS
$custom: #3a8fdb;
$custom-light: #84afe6;
$custom-dark: #000000;
JSON
{
  "hex": "#3a8fdb",
  "rgb": {
    "r": 58,
    "g": 143,
    "b": 219
  },
  "hsl": {
    "h": 208.323,
    "s": 69.099,
    "l": 54.314
  },
  "oklch": {
    "l": 0.63424,
    "c": 0.14038,
    "h": 248.9
  },
  "luminance": 0.25659
}

Semantic roles & 50–950 ramp

primary
#3A8FDB
secondary
#DBB696
accent
#8F3CEC
background
#F8FAFE
surface
#F0F4FC
border
#CBCED5
text
#0C1016
muted
#7D7F84

Preview Lab

Preview with #3A8FDB

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

Preview Lab → · Contrast checker → · Palette generator →

#3A8FDB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva