#51C8DC#51C8DC

#51C8DC is a light, moderate teal. Relative luminance 0.482; OKLCH L 77.4% C 0.109 H 210.5°. Best body text is #000000 at 10.65:1 contrast (WCAG AA passes).

Color values

HEX	#51C8DC
RGB	rgb(81, 200, 220)
HSL	hsl(189, 67%, 59%)
HSV	hsv(189, 63%, 86%)
CMYK	cmyk(63.2%, 9.1%, 0%, 13.7%)
CIE-LAB	lab(74.96, -27.13, -19.84)
CIE-LCH	lch(74.96, 33.61, 216.17°)
OKLab	oklab(77.36% -0.0936 -0.0551)
OKLCH	oklch(77.36% 0.109 210.5)
XYZ	xyz(36.9605, 48.2212, 75.0560)
Luminance	0.4823 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C8DC #DC6551

analogous

#51DCAB #51C8DC #5183DC

triadic

#51C8DC #DC51C8 #C8DC51

tetradic

#51C8DC #AB51DC #DC6551 #83DC51

square

#51C8DC #AB51DC #DC6551 #83DC51

split-complementary

#51C8DC #DC5183 #DCAB51

monochromatic

#1E8495 #28B1C8 #51C8DC #84D8E6 #B7E8F0

Accessibility & contrast

On white

1.97

#51C8DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.65

#51C8DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C8DC

10.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C8DC	#FFFFFF	#000000	##000000
##51C8DC	1.00	1.97	10.65	10.65
#FFFFFF	1.97	1.00	21.00	21.00
#000000	10.65	21.00	1.00	1.00
##000000	10.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7C1DD

Deuteranopia (green-blind)

#A3B2DC

Tritanopia (blue-blind)

#00D1CE

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #51c8dc;
/* rgb */ color: rgb(81, 200, 220);
/* oklch */ color: oklch(77.4% 0.109 210.5);

Tailwind

colors: {
  custom: {
    50: '#91d9e6',
    500: '#51c8dc',
    950: '#000000',
  },
}

SCSS

$custom: #51c8dc;
$custom-light: #91d9e6;
$custom-dark: #000000;

JSON

{
  "hex": "#51c8dc",
  "rgb": {
    "r": 81,
    "g": 200,
    "b": 220
  },
  "hsl": {
    "h": 188.633,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.77361,
    "c": 0.10858,
    "h": 210.5
  },
  "luminance": 0.48225
}

Semantic roles & 50–950 ramp

primary

#51C8DC

secondary

#E0B1A9

accent

#573EE9

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0E1416

muted

#7E8384

Preview Lab

Preview with #51C8DC

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

Preview Lab → · Contrast checker → · Palette generator →