#51D8DA#51D8DA

#51D8DA is a light, moderate teal. Relative luminance 0.559; OKLCH L 81.1% C 0.115 H 196.5°. Best body text is #000000 at 12.18:1 contrast (WCAG AA passes).

Color values

HEX	#51D8DA
RGB	rgb(81, 216, 218)
HSL	hsl(181, 65%, 59%)
HSV	hsv(181, 63%, 85%)
CMYK	cmyk(62.8%, 0.9%, 0%, 14.5%)
CIE-LAB	lab(79.57, -35.37, -11.83)
CIE-LCH	lch(79.57, 37.30, 198.50°)
OKLab	oklab(81.05% -0.1107 -0.0328)
OKLCH	oklch(81.05% 0.115 196.5)
XYZ	xyz(40.5985, 55.9186, 74.9698)
Luminance	0.5592 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D8DA #DA5351

analogous

#51DA97 #51D8DA #5193DA

triadic

#51D8DA #DA51D8 #D8DA51

tetradic

#51D8DA #9751DA #DA5351 #93DA51

square

#51D8DA #9751DA #DA5351 #93DA51

split-complementary

#51D8DA #DA5193 #DA9751

monochromatic

#1F9092 #2AC2C4 #51D8DA #83E3E5 #B6EFEF

Accessibility & contrast

On white

1.72

#51D8DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.18

#51D8DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D8DA

12.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D8DA	#FFFFFF	#000000	##000000
##51D8DA	1.00	1.72	12.18	12.18
#FFFFFF	1.72	1.00	21.00	21.00
#000000	12.18	21.00	1.00	1.00
##000000	12.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CACEDA

Deuteranopia (green-blind)

#B5BFDB

Tritanopia (blue-blind)

#00DFD8

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #51d8da;
/* rgb */ color: rgb(81, 216, 218);
/* oklch */ color: oklch(81.1% 0.115 196.5);

Tailwind

colors: {
  custom: {
    50: '#92e4e5',
    500: '#51d8da',
    950: '#000000',
  },
}

SCSS

$custom: #51d8da;
$custom-light: #92e4e5;
$custom-dark: #000000;

JSON

{
  "hex": "#51d8da",
  "rgb": {
    "r": 81,
    "g": 216,
    "b": 218
  },
  "hsl": {
    "h": 180.876,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.81055,
    "c": 0.11546,
    "h": 196.5
  },
  "luminance": 0.55923
}

Semantic roles & 50–950 ramp

primary

#51D8DA

secondary

#973A39

accent

#4240E8

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1515

muted

#7F8484

Preview Lab

Preview with #51D8DA

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

Preview Lab → · Contrast checker → · Palette generator →