#51D3DB#51D3DB

#51D3DB is a light, moderate teal. Relative luminance 0.535; OKLCH L 79.9% C 0.113 H 200.9°. Best body text is #000000 at 11.69:1 contrast (WCAG AA passes).

Color values

HEX	#51D3DB
RGB	rgb(81, 211, 219)
HSL	hsl(183, 66%, 59%)
HSV	hsv(183, 63%, 86%)
CMYK	cmyk(63%, 3.7%, 0%, 14.1%)
CIE-LAB	lab(78.14, -32.74, -14.51)
CIE-LCH	lch(78.14, 35.81, 203.90°)
OKLab	oklab(79.91% -0.1052 -0.0402)
OKLCH	oklch(79.91% 0.113 200.9)
XYZ	xyz(39.4683, 53.4480, 75.2406)
Luminance	0.5345 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D3DB #DB5951

analogous

#51DB9E #51D3DB #518EDB

triadic

#51D3DB #DB51D3 #D3DB51

tetradic

#51D3DB #9E51DB #DB5951 #8EDB51

square

#51D3DB #9E51DB #DB5951 #8EDB51

split-complementary

#51D3DB #DB518E #DB9E51

monochromatic

#1E8C93 #29BDC6 #51D3DB #84E0E5 #B6EDF0

Accessibility & contrast

On white

1.80

#51D3DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.69

#51D3DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D3DB

11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D3DB	#FFFFFF	#000000	##000000
##51D3DB	1.00	1.80	11.69	11.69
#FFFFFF	1.80	1.00	21.00	21.00
#000000	11.69	21.00	1.00	1.00
##000000	11.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C4CADC

Deuteranopia (green-blind)

#AFBBDC

Tritanopia (blue-blind)

#00DAD5

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #51d3db;
/* rgb */ color: rgb(81, 211, 219);
/* oklch */ color: oklch(79.9% 0.113 200.9);

Tailwind

colors: {
  custom: {
    50: '#92e1e6',
    500: '#51d3db',
    950: '#000000',
  },
}

SCSS

$custom: #51d3db;
$custom-light: #92e1e6;
$custom-dark: #000000;

JSON

{
  "hex": "#51d3db",
  "rgb": {
    "r": 81,
    "g": 211,
    "b": 219
  },
  "hsl": {
    "h": 183.478,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.7991,
    "c": 0.11263,
    "h": 200.9
  },
  "luminance": 0.53452
}

Semantic roles & 50–950 ramp

primary

#51D3DB

secondary

#983E38

accent

#493FE9

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1515

muted

#7F8484

Preview Lab

Preview with #51D3DB

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

Preview Lab → · Contrast checker → · Palette generator →