#51C7DA#51C7DA

#51C7DA is a light, moderate teal. Relative luminance 0.477; OKLCH L 77.1% C 0.108 H 209.8°. Best body text is #000000 at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#51C7DA
RGB	rgb(81, 199, 218)
HSL	hsl(188, 65%, 59%)
HSV	hsv(188, 63%, 85%)
CMYK	cmyk(62.8%, 8.7%, 0%, 14.5%)
CIE-LAB	lab(74.61, -27.23, -19.30)
CIE-LCH	lch(74.61, 33.37, 215.33°)
OKLab	oklab(77.05% -0.0933 -0.0535)
OKLCH	oklch(77.05% 0.108 209.8)
XYZ	xyz(36.4664, 47.6543, 73.5924)
Luminance	0.4766 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C7DA #DA6451

analogous

#51DAA8 #51C7DA #5182DA

triadic

#51C7DA #DA51C7 #C7DA51

tetradic

#51C7DA #A851DA #DA6451 #82DA51

square

#51C7DA #A851DA #DA6451 #82DA51

split-complementary

#51C7DA #DA5182 #DAA851

monochromatic

#1F8292 #2AAFC4 #51C7DA #83D7E5 #B6E7EF

Accessibility & contrast

On white

1.99

#51C7DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.53

#51C7DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C7DA

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C7DA	#FFFFFF	#000000	##000000
##51C7DA	1.00	1.99	10.53	10.53
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.53	21.00	1.00	1.00
##000000	10.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6C0DB

Deuteranopia (green-blind)

#A2B1DA

Tritanopia (blue-blind)

#00D0CD

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #51c7da;
/* rgb */ color: rgb(81, 199, 218);
/* oklch */ color: oklch(77.1% 0.108 209.8);

Tailwind

colors: {
  custom: {
    50: '#90d8e5',
    500: '#51c7da',
    950: '#000000',
  },
}

SCSS

$custom: #51c7da;
$custom-light: #90d8e5;
$custom-dark: #000000;

JSON

{
  "hex": "#51c7da",
  "rgb": {
    "r": 81,
    "g": 199,
    "b": 218
  },
  "hsl": {
    "h": 188.321,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.77051,
    "c": 0.10762,
    "h": 209.8
  },
  "luminance": 0.47658
}

Semantic roles & 50–950 ramp

primary

#51C7DA

secondary

#DEB0A8

accent

#5740E8

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0E1415

muted

#7E8384

Preview Lab

Preview with #51C7DA

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

Preview Lab → · Contrast checker → · Palette generator →