#519BB9#519BB9

#519BB9 is a light, moderate cyan. Relative luminance 0.287; OKLCH L 65.4% C 0.086 H 226.8°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX#519BB9
RGBrgb(81, 155, 185)
HSLhsl(197, 43%, 52%)
HSVhsv(197, 56%, 73%)
CMYKcmyk(56.2%, 16.2%, 0%, 27.5%)
CIE-LABlab(60.51, -14.33, -22.56)
CIE-LCHlch(60.51, 26.73, 237.58°)
OKLaboklab(65.37% -0.0589 -0.0627)
OKLCHoklch(65.37% 0.086 226.8)
XYZxyz(23.8683, 28.6926, 50.1699)
Luminance0.2869 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#519BB9 #B96F51
analogous
#51B9A3 #519BB9 #5167B9
triadic
#519BB9 #B9519B #9BB951
tetradic
#519BB9 #A351B9 #B96F51 #67B951
square
#519BB9 #A351B9 #B96F51 #67B951
split-complementary
#519BB9 #B95167 #B9A351
monochromatic
#295566 #3B7992 #519BB9 #7DB4CB #A8CDDC

Accessibility & contrast

On white

3.12
#519BB9 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.74
#519BB9 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #519BB9
6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##519BB9#FFFFFF#000000##000000
##519BB91.003.126.746.74
#FFFFFF3.121.0021.0021.00
#0000006.7421.001.001.00
##0000006.7421.001.001.00

Color blindness preview

Protanopia (red-blind)
#8B98BB
Deuteranopia (green-blind)
#7C8DB9
Tritanopia (blue-blind)
#00A4A5
Achromatopsia (no color)
#929292

Design tokens & code

CSS
--color: #519bb9;
/* rgb */ color: rgb(81, 155, 185);
/* oklch */ color: oklch(65.4% 0.086 226.8);
Tailwind
colors: {
  custom: {
    50: '#8ab8ce',
    500: '#519bb9',
    950: '#000000',
  },
}
SCSS
$custom: #519bb9;
$custom-light: #8ab8ce;
$custom-dark: #000000;
JSON
{
  "hex": "#519bb9",
  "rgb": {
    "r": 81,
    "g": 155,
    "b": 185
  },
  "hsl": {
    "h": 197.308,
    "s": 42.623,
    "l": 52.157
  },
  "oklch": {
    "l": 0.6537,
    "c": 0.08606,
    "h": 226.8
  },
  "luminance": 0.28695
}

Semantic roles & 50–950 ramp

primary
#519BB9
secondary
#CAA99C
accent
#7955D2
background
#F8FBFC
surface
#F0F6F9
border
#CBD0D2
text
#0C1113
muted
#7D8082

Preview Lab

Preview with #519BB9

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

Preview Lab → · Contrast checker → · Palette generator →

#519BB9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva