#3A8CDB#3A8CDB

#3A8CDB is a light, vivid cyan. Relative luminance 0.248; OKLCH L 62.7% C 0.143 H 250.5°. Best body text is #000000 at 5.95:1 contrast (WCAG AA passes).

Color values

HEX#3A8CDB
RGBrgb(58, 140, 219)
HSLhsl(209, 69%, 54%)
HSVhsv(209, 74%, 86%)
CMYKcmyk(73.5%, 36.1%, 0%, 14.1%)
CIE-LABlab(56.85, 1.61, -47.44)
CIE-LCHlch(56.85, 47.47, 271.94°)
OKLaboklab(62.75% -0.0477 -0.135)
OKLCHoklch(62.75% 0.143 250.5)
XYZxyz(23.9044, 24.7675, 70.5249)
Luminance0.2477 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3A8CDB #DB893A
analogous
#3ADBDA #3A8CDB #3A3CDB
triadic
#3A8CDB #DB3A8C #8CDB3A
tetradic
#3A8CDB #DA3ADB #DB893A #3CDB3A
square
#3A8CDB #DA3ADB #DB893A #3CDB3A
split-complementary
#3A8CDB #DB3A3C #DBDA3A
monochromatic
#184E83 #216DB6 #3A8CDB #6EAAE4 #A1C8EE

Accessibility & contrast

On white

3.53
#3A8CDB on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.95
#3A8CDB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3A8CDB
5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3A8CDB#FFFFFF#000000##000000
##3A8CDB1.003.535.955.95
#FFFFFF3.531.0021.0021.00
#0000005.9521.001.001.00
##0000005.9521.001.001.00

Color blindness preview

Protanopia (red-blind)
#6891DE
Deuteranopia (green-blind)
#5082D9
Tritanopia (blue-blind)
#009FA9
Achromatopsia (no color)
#888888

Design tokens & code

CSS
--color: #3a8cdb;
/* rgb */ color: rgb(58, 140, 219);
/* oklch */ color: oklch(62.7% 0.143 250.5);
Tailwind
colors: {
  custom: {
    50: '#84ade6',
    500: '#3a8cdb',
    950: '#000000',
  },
}
SCSS
$custom: #3a8cdb;
$custom-light: #84ade6;
$custom-dark: #000000;
JSON
{
  "hex": "#3a8cdb",
  "rgb": {
    "r": 58,
    "g": 140,
    "b": 219
  },
  "hsl": {
    "h": 209.441,
    "s": 69.099,
    "l": 54.314
  },
  "oklch": {
    "l": 0.62749,
    "c": 0.14321,
    "h": 250.5
  },
  "luminance": 0.2477
}

Semantic roles & 50–950 ramp

primary
#3A8CDB
secondary
#DBB896
accent
#923CEC
background
#F8FAFE
surface
#F0F4FC
border
#CBCED5
text
#0C1016
muted
#7D7F84

Preview Lab

Preview with #3A8CDB

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

Preview Lab → · Contrast checker → · Palette generator →

#3A8CDB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva