#3990D5#3990D5

#3990D5 is a light, vivid cyan. Relative luminance 0.256; OKLCH L 63.3% C 0.133 H 246.2°. Best body text is #000000 at 6.12:1 contrast (WCAG AA passes).

Color values

HEX#3990D5
RGBrgb(57, 144, 213)
HSLhsl(207, 65%, 53%)
HSVhsv(207, 73%, 84%)
CMYKcmyk(73.2%, 32.4%, 0%, 16.5%)
CIE-LABlab(57.67, -3.00, -42.78)
CIE-LCHlch(57.67, 42.89, 265.99°)
OKLaboklab(63.29% -0.0536 -0.1213)
OKLCHoklch(63.29% 0.133 246.2)
XYZxyz(23.6662, 25.6178, 66.6353)
Luminance0.2562 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3990D5 #D57E39
analogous
#39D5CC #3990D5 #3942D5
triadic
#3990D5 #D53990 #90D539
tetradic
#3990D5 #CC39D5 #D57E39 #42D539
square
#3990D5 #CC39D5 #D57E39 #42D539
split-complementary
#3990D5 #D53942 #D5CC39
monochromatic
#1A4F7A #2570AC #3990D5 #6BACE0 #9EC9EA

Accessibility & contrast

On white

3.43
#3990D5 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.12
#3990D5 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3990D5
6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3990D5#FFFFFF#000000##000000
##3990D51.003.436.126.12
#FFFFFF3.431.0021.0021.00
#0000006.1221.001.001.00
##0000006.1221.001.001.00

Color blindness preview

Protanopia (red-blind)
#7093D8
Deuteranopia (green-blind)
#5A84D4
Tritanopia (blue-blind)
#00A1A9
Achromatopsia (no color)
#8B8B8B

Design tokens & code

CSS
--color: #3990d5;
/* rgb */ color: rgb(57, 144, 213);
/* oklch */ color: oklch(63.3% 0.133 246.2);
Tailwind
colors: {
  custom: {
    50: '#83b0e2',
    500: '#3990d5',
    950: '#000000',
  },
}
SCSS
$custom: #3990d5;
$custom-light: #83b0e2;
$custom-dark: #000000;
JSON
{
  "hex": "#3990d5",
  "rgb": {
    "r": 57,
    "g": 144,
    "b": 213
  },
  "hsl": {
    "h": 206.538,
    "s": 65,
    "l": 52.941
  },
  "oklch": {
    "l": 0.6329,
    "c": 0.13267,
    "h": 246.2
  },
  "luminance": 0.2562
}

Semantic roles & 50–950 ramp

primary
#3990D5
secondary
#D7B193
accent
#8A40E8
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #3990D5

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

Preview Lab → · Contrast checker → · Palette generator →

#3990D5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva