#3F9BDA#3F9BDA

#3F9BDA is a light, vivid cyan. Relative luminance 0.296; OKLCH L 66.3% C 0.127 H 242.3°. Best body text is #000000 at 6.91:1 contrast (WCAG AA passes).

Color values

HEX#3F9BDA
RGBrgb(63, 155, 218)
HSLhsl(204, 68%, 55%)
HSVhsv(204, 71%, 85%)
CMYKcmyk(71.1%, 28.9%, 0%, 14.5%)
CIE-LABlab(61.27, -6.75, -39.90)
CIE-LCHlch(61.27, 40.47, 260.40°)
OKLaboklab(66.26% -0.0592 -0.1128)
OKLCHoklch(66.26% 0.127 242.3)
XYZxyz(26.4212, 29.5584, 70.6290)
Luminance0.2956 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F9BDA #DA7E3F
analogous
#3FDACC #3F9BDA #3F4DDA
triadic
#3F9BDA #DA3F9B #9BDA3F
tetradic
#3F9BDA #CC3FDA #DA7E3F #4DDA3F
square
#3F9BDA #CC3FDA #DA7E3F #4DDA3F
split-complementary
#3F9BDA #DA3F4D #DACC3F
monochromatic
#1A5985 #247CB8 #3F9BDA #72B6E4 #A6D0EE

Accessibility & contrast

On white

3.04
#3F9BDA on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.91
#3F9BDA on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9BDA
6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F9BDA#FFFFFF#000000##000000
##3F9BDA1.003.046.916.91
#FFFFFF3.041.0021.0021.00
#0000006.9121.001.001.00
##0000006.9121.001.001.00

Color blindness preview

Protanopia (red-blind)
#7E9CDD
Deuteranopia (green-blind)
#698DD9
Tritanopia (blue-blind)
#00ABB1
Achromatopsia (no color)
#949494

Design tokens & code

CSS
--color: #3f9bda;
/* rgb */ color: rgb(63, 155, 218);
/* oklch */ color: oklch(66.3% 0.127 242.3);
Tailwind
colors: {
  custom: {
    50: '#86b8e5',
    500: '#3f9bda',
    950: '#000000',
  },
}
SCSS
$custom: #3f9bda;
$custom-light: #86b8e5;
$custom-dark: #000000;
JSON
{
  "hex": "#3f9bda",
  "rgb": {
    "r": 63,
    "g": 155,
    "b": 218
  },
  "hsl": {
    "h": 204.387,
    "s": 67.686,
    "l": 55.098
  },
  "oklch": {
    "l": 0.66257,
    "c": 0.12736,
    "h": 242.3
  },
  "luminance": 0.29561
}

Semantic roles & 50–950 ramp

primary
#3F9BDA
secondary
#DBB49A
accent
#843DEB
background
#F8FBFE
surface
#F0F6FC
border
#CBD0D5
text
#0D1116
muted
#7D8084

Preview Lab

Preview with #3F9BDA

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

Preview Lab → · Contrast checker → · Palette generator →

#3F9BDA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva