#51AEC9#51AEC9

#51AEC9 is a light, moderate cyan. Relative luminance 0.362; OKLCH L 70.5% C 0.096 H 219.7°. Best body text is #000000 at 8.25:1 contrast (WCAG AA passes).

Color values

HEX#51AEC9
RGBrgb(81, 174, 201)
HSLhsl(194, 53%, 55%)
HSVhsv(194, 60%, 79%)
CMYKcmyk(59.7%, 13.4%, 0%, 21.2%)
CIE-LABlab(66.70, -19.59, -22.03)
CIE-LCHlch(66.70, 29.48, 228.34°)
OKLaboklab(70.51% -0.0738 -0.0612)
OKLCHoklch(70.51% 0.096 219.7)
XYZxyz(29.0678, 36.2356, 60.7093)
Luminance0.3624 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#51AEC9 #C96C51
analogous
#51C9A8 #51AEC9 #5172C9
triadic
#51AEC9 #C951AE #AEC951
tetradic
#51AEC9 #A851C9 #C96C51 #72C951
square
#51AEC9 #A851C9 #C96C51 #72C951
split-complementary
#51AEC9 #C95172 #C9A851
monochromatic
#26677A #348EA9 #51AEC9 #80C4D7 #AED9E6

Accessibility & contrast

On white

2.55
#51AEC9 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.25
#51AEC9 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AEC9
8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##51AEC9#FFFFFF#000000##000000
##51AEC91.002.558.258.25
#FFFFFF2.551.0021.0021.00
#0000008.2521.001.001.00
##0000008.2521.001.001.00

Color blindness preview

Protanopia (red-blind)
#9DAACA
Deuteranopia (green-blind)
#8C9DC9
Tritanopia (blue-blind)
#00B7B6
Achromatopsia (no color)
#A2A2A2

Design tokens & code

CSS
--color: #51aec9;
/* rgb */ color: rgb(81, 174, 201);
/* oklch */ color: oklch(70.5% 0.096 219.7);
Tailwind
colors: {
  custom: {
    50: '#8dc6d9',
    500: '#51aec9',
    950: '#000000',
  },
}
SCSS
$custom: #51aec9;
$custom-light: #8dc6d9;
$custom-dark: #000000;
JSON
{
  "hex": "#51aec9",
  "rgb": {
    "r": 81,
    "g": 174,
    "b": 201
  },
  "hsl": {
    "h": 193.5,
    "s": 52.632,
    "l": 55.294
  },
  "oklch": {
    "l": 0.7051,
    "c": 0.09586,
    "h": 219.7
  },
  "luminance": 0.36238
}

Semantic roles & 50–950 ramp

primary
#51AEC9
secondary
#D4ADA2
accent
#6C4CDC
background
#F9FCFD
surface
#F1F8FA
border
#CBD1D3
text
#0D1314
muted
#7E8283

Preview Lab

Preview with #51AEC9

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

Preview Lab → · Contrast checker → · Palette generator →

#51AEC9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva