#51D8DC#51D8DC

#51D8DC is a light, moderate teal. Relative luminance 0.560; OKLCH L 81.1% C 0.115 H 197.9°. Best body text is #000000 at 12.21:1 contrast (WCAG AA passes).

Color values

HEX	#51D8DC
RGB	rgb(81, 216, 220)
HSL	hsl(182, 67%, 59%)
HSV	hsv(182, 63%, 86%)
CMYK	cmyk(63.2%, 1.8%, 0%, 13.7%)
CIE-LAB	lab(79.63, -34.82, -12.81)
CIE-LCH	lch(79.63, 37.10, 200.20°)
OKLab	oklab(81.12% -0.1099 -0.0355)
OKLCH	oklch(81.12% 0.115 197.9)
XYZ	xyz(40.8618, 56.0239, 76.3565)
Luminance	0.5603 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D8DC #DC5551

analogous

#51DC9B #51D8DC #5193DC

triadic

#51D8DC #DC51D8 #D8DC51

tetradic

#51D8DC #9B51DC #DC5551 #93DC51

square

#51D8DC #9B51DC #DC5551 #93DC51

split-complementary

#51D8DC #DC5193 #DC9B51

monochromatic

#1E9195 #28C3C8 #51D8DC #84E3E6 #B7EFF0

Accessibility & contrast

On white

1.72

#51D8DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.21

#51D8DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D8DC

12.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D8DC	#FFFFFF	#000000	##000000
##51D8DC	1.00	1.72	12.21	12.21
#FFFFFF	1.72	1.00	21.00	21.00
#000000	12.21	21.00	1.00	1.00
##000000	12.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CACEDD

Deuteranopia (green-blind)

#B4BFDD

Tritanopia (blue-blind)

#00DFD9

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #51d8dc;
/* rgb */ color: rgb(81, 216, 220);
/* oklch */ color: oklch(81.1% 0.115 197.9);

Tailwind

colors: {
  custom: {
    50: '#92e4e6',
    500: '#51d8dc',
    950: '#000000',
  },
}

SCSS

$custom: #51d8dc;
$custom-light: #92e4e6;
$custom-dark: #000000;

JSON

{
  "hex": "#51d8dc",
  "rgb": {
    "r": 81,
    "g": 216,
    "b": 220
  },
  "hsl": {
    "h": 181.727,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.81124,
    "c": 0.11546,
    "h": 197.9
  },
  "luminance": 0.56028
}

Semantic roles & 50–950 ramp

primary

#51D8DC

secondary

#993B38

accent

#433EE9

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #51D8DC

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

Preview Lab → · Contrast checker → · Palette generator →