#51D1DB#51D1DB

#51D1DB is a light, moderate teal. Relative luminance 0.525; OKLCH L 79.4% C 0.112 H 202.5°. Best body text is #000000 at 11.49:1 contrast (WCAG AA passes).

Color values

HEX	#51D1DB
RGB	rgb(81, 209, 219)
HSL	hsl(184, 66%, 59%)
HSV	hsv(184, 63%, 86%)
CMYK	cmyk(63%, 4.6%, 0%, 14.1%)
CIE-LAB	lab(77.56, -31.79, -15.39)
CIE-LCH	lch(77.56, 35.32, 205.83°)
OKLab	oklab(79.44% -0.1032 -0.0426)
OKLCH	oklch(79.44% 0.112 202.5)
XYZ	xyz(38.9745, 52.4605, 75.0760)
Luminance	0.5246 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D1DB #DB5B51

analogous

#51DBA0 #51D1DB #518CDB

triadic

#51D1DB #DB51D1 #D1DB51

tetradic

#51D1DB #A051DB #DB5B51 #8CDB51

square

#51D1DB #A051DB #DB5B51 #8CDB51

split-complementary

#51D1DB #DB518C #DBA051

monochromatic

#1E8B93 #29BAC6 #51D1DB #84DEE5 #B6ECF0

Accessibility & contrast

On white

1.83

#51D1DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.49

#51D1DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D1DB

11.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D1DB	#FFFFFF	#000000	##000000
##51D1DB	1.00	1.83	11.49	11.49
#FFFFFF	1.83	1.00	21.00	21.00
#000000	11.49	21.00	1.00	1.00
##000000	11.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2C9DC

Deuteranopia (green-blind)

#ADB9DC

Tritanopia (blue-blind)

#00D9D4

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #51d1db;
/* rgb */ color: rgb(81, 209, 219);
/* oklch */ color: oklch(79.4% 0.112 202.5);

Tailwind

colors: {
  custom: {
    50: '#91dfe6',
    500: '#51d1db',
    950: '#000000',
  },
}

SCSS

$custom: #51d1db;
$custom-light: #91dfe6;
$custom-dark: #000000;

JSON

{
  "hex": "#51d1db",
  "rgb": {
    "r": 81,
    "g": 209,
    "b": 219
  },
  "hsl": {
    "h": 184.348,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.79439,
    "c": 0.11164,
    "h": 202.5
  },
  "luminance": 0.52465
}

Semantic roles & 50–950 ramp

primary

#51D1DB

secondary

#983F38

accent

#4B3FE9

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1515

muted

#7F8484

Preview Lab

Preview with #51D1DB

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

Preview Lab → · Contrast checker → · Palette generator →