#3998DA#3998DA

#3998DA is a light, vivid cyan. Relative luminance 0.284; OKLCH L 65.4% C 0.132 H 243.1°. Best body text is #000000 at 6.68:1 contrast (WCAG AA passes).

Color values

HEX#3998DA
RGBrgb(57, 152, 218)
HSLhsl(205, 69%, 54%)
HSVhsv(205, 74%, 85%)
CMYKcmyk(73.9%, 30.3%, 0%, 14.5%)
CIE-LABlab(60.24, -5.84, -41.54)
CIE-LCHlch(60.24, 41.95, 261.99°)
OKLaboklab(65.39% -0.0596 -0.1176)
OKLCHoklch(65.39% 0.132 243.1)
XYZxyz(25.5656, 28.3853, 70.4476)
Luminance0.2839 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3998DA #DA7B39
analogous
#39DACC #3998DA #3948DA
triadic
#3998DA #DA3998 #98DA39
tetradic
#3998DA #CC39DA #DA7B39 #48DA39
square
#3998DA #CC39DA #DA7B39 #48DA39
split-complementary
#3998DA #DA3948 #DACC39
monochromatic
#185681 #2278B4 #3998DA #6DB3E4 #A0CEED

Accessibility & contrast

On white

3.14
#3998DA on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.68
#3998DA on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3998DA
6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3998DA#FFFFFF#000000##000000
##3998DA1.003.146.686.68
#FFFFFF3.141.0021.0021.00
#0000006.6821.001.001.00
##0000006.6821.001.001.00

Color blindness preview

Protanopia (red-blind)
#7A9ADD
Deuteranopia (green-blind)
#638AD9
Tritanopia (blue-blind)
#00A8AF
Achromatopsia (no color)
#919191

Design tokens & code

CSS
--color: #3998da;
/* rgb */ color: rgb(57, 152, 218);
/* oklch */ color: oklch(65.4% 0.132 243.1);
Tailwind
colors: {
  custom: {
    50: '#84b6e5',
    500: '#3998da',
    950: '#000000',
  },
}
SCSS
$custom: #3998da;
$custom-light: #84b6e5;
$custom-dark: #000000;
JSON
{
  "hex": "#3998da",
  "rgb": {
    "r": 57,
    "g": 152,
    "b": 218
  },
  "hsl": {
    "h": 204.596,
    "s": 68.511,
    "l": 53.922
  },
  "oklch": {
    "l": 0.65391,
    "c": 0.13188,
    "h": 243.1
  },
  "luminance": 0.28388
}

Semantic roles & 50–950 ramp

primary
#3998DA
secondary
#DAB195
accent
#843CEB
background
#F8FBFE
surface
#F0F6FC
border
#CBD0D5
text
#0C1116
muted
#7D8084

Preview Lab

Preview with #3998DA

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

Preview Lab → · Contrast checker → · Palette generator →

#3998DA Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva