#398BD9#398BD9

#398BD9 is a light, vivid cyan. Relative luminance 0.243; OKLCH L 62.4% C 0.142 H 250.3°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX#398BD9
RGBrgb(57, 139, 217)
HSLhsl(209, 68%, 54%)
HSVhsv(209, 74%, 85%)
CMYKcmyk(73.7%, 35.9%, 0%, 14.9%)
CIE-LABlab(56.43, 1.36, -46.99)
CIE-LCHlch(56.43, 47.01, 271.65°)
OKLaboklab(62.38% -0.0479 -0.1337)
OKLCHoklch(62.38% 0.142 250.3)
XYZxyz(23.4396, 24.3422, 69.0954)
Luminance0.2434 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#398BD9 #D98739
analogous
#39D9D7 #398BD9 #393BD9
triadic
#398BD9 #D9398B #8BD939
tetradic
#398BD9 #D739D9 #D98739 #3BD939
square
#398BD9 #D739D9 #D98739 #3BD939
split-complementary
#398BD9 #D9393B #D9D739
monochromatic
#184D7F #226CB3 #398BD9 #6CA9E3 #A0C7ED

Accessibility & contrast

On white

3.58
#398BD9 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.87
#398BD9 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #398BD9
5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##398BD9#FFFFFF#000000##000000
##398BD91.003.585.875.87
#FFFFFF3.581.0021.0021.00
#0000005.8721.001.001.00
##0000005.8721.001.001.00

Color blindness preview

Protanopia (red-blind)
#678FDC
Deuteranopia (green-blind)
#4F81D7
Tritanopia (blue-blind)
#009DA8
Achromatopsia (no color)
#878787

Design tokens & code

CSS
--color: #398bd9;
/* rgb */ color: rgb(57, 139, 217);
/* oklch */ color: oklch(62.4% 0.142 250.3);
Tailwind
colors: {
  custom: {
    50: '#84ace5',
    500: '#398bd9',
    950: '#000000',
  },
}
SCSS
$custom: #398bd9;
$custom-light: #84ace5;
$custom-dark: #000000;
JSON
{
  "hex": "#398bd9",
  "rgb": {
    "r": 57,
    "g": 139,
    "b": 217
  },
  "hsl": {
    "h": 209.25,
    "s": 67.797,
    "l": 53.725
  },
  "oklch": {
    "l": 0.62378,
    "c": 0.14205,
    "h": 250.3
  },
  "luminance": 0.24345
}

Semantic roles & 50–950 ramp

primary
#398BD9
secondary
#D9B695
accent
#923DEB
background
#F8FAFE
surface
#F0F4FC
border
#CBCED5
text
#0C1016
muted
#7D7F84

Preview Lab

Preview with #398BD9

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

Preview Lab → · Contrast checker → · Palette generator →

#398BD9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva