#51D9DA#51D9DA

#51D9DA is a light, moderate teal. Relative luminance 0.564; OKLCH L 81.3% C 0.116 H 195.8°. Best body text is #000000 at 12.29:1 contrast (WCAG AA passes).

Color values

HEX	#51D9DA
RGB	rgb(81, 217, 218)
HSL	hsl(180, 65%, 59%)
HSV	hsv(180, 63%, 85%)
CMYK	cmyk(62.8%, 0.5%, 0%, 14.5%)
CIE-LAB	lab(79.86, -35.84, -11.40)
CIE-LCH	lch(79.86, 37.61, 197.64°)
OKLab	oklab(81.29% -0.1117 -0.0316)
OKLCH	oklch(81.29% 0.116 195.8)
XYZ	xyz(40.8555, 56.4325, 75.0555)
Luminance	0.5644 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D9DA #DA5251

analogous

#51DA96 #51D9DA #5194DA

triadic

#51D9DA #DA51D9 #D9DA51

tetradic

#51D9DA #9651DA #DA5251 #94DA51

square

#51D9DA #9651DA #DA5251 #94DA51

split-complementary

#51D9DA #DA5194 #DA9651

monochromatic

#1F9192 #2AC3C4 #51D9DA #83E4E5 #B6EFEF

Accessibility & contrast

On white

1.71

#51D9DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.29

#51D9DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D9DA

12.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D9DA	#FFFFFF	#000000	##000000
##51D9DA	1.00	1.71	12.29	12.29
#FFFFFF	1.71	1.00	21.00	21.00
#000000	12.29	21.00	1.00	1.00
##000000	12.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CBCFDA

Deuteranopia (green-blind)

#B6BFDB

Tritanopia (blue-blind)

#00E0D9

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #51d9da;
/* rgb */ color: rgb(81, 217, 218);
/* oklch */ color: oklch(81.3% 0.116 195.8);

Tailwind

colors: {
  custom: {
    50: '#92e5e5',
    500: '#51d9da',
    950: '#000000',
  },
}

SCSS

$custom: #51d9da;
$custom-light: #92e5e5;
$custom-dark: #000000;

JSON

{
  "hex": "#51d9da",
  "rgb": {
    "r": 81,
    "g": 217,
    "b": 218
  },
  "hsl": {
    "h": 180.438,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.81292,
    "c": 0.1161,
    "h": 195.8
  },
  "luminance": 0.56437
}

Semantic roles & 50–950 ramp

primary

#51D9DA

secondary

#973939

accent

#4140E8

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1615

muted

#7F8484

Preview Lab

Preview with #51D9DA

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

Preview Lab → · Contrast checker → · Palette generator →