#51D5DB#51D5DB

#51D5DB is a light, moderate teal. Relative luminance 0.545; OKLCH L 80.4% C 0.114 H 199.4°. Best body text is #000000 at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#51D5DB
RGB	rgb(81, 213, 219)
HSL	hsl(183, 66%, 59%)
HSV	hsv(183, 63%, 86%)
CMYK	cmyk(63%, 2.7%, 0%, 14.1%)
CIE-LAB	lab(78.72, -33.69, -13.63)
CIE-LCH	lch(78.72, 36.34, 202.03°)
OKLab	oklab(80.38% -0.1072 -0.0378)
OKLCH	oklch(80.38% 0.114 199.4)
XYZ	xyz(39.9682, 54.4480, 75.4072)
Luminance	0.5445 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D5DB #DB5751

analogous

#51DB9C #51D5DB #5190DB

triadic

#51D5DB #DB51D5 #D5DB51

tetradic

#51D5DB #9C51DB #DB5751 #90DB51

square

#51D5DB #9C51DB #DB5751 #90DB51

split-complementary

#51D5DB #DB5190 #DB9C51

monochromatic

#1E8E93 #29BFC6 #51D5DB #84E1E5 #B6EDF0

Accessibility & contrast

On white

1.77

#51D5DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.89

#51D5DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D5DB

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D5DB	#FFFFFF	#000000	##000000
##51D5DB	1.00	1.77	11.89	11.89
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.89	21.00	1.00	1.00
##000000	11.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6CCDC

Deuteranopia (green-blind)

#B1BCDC

Tritanopia (blue-blind)

#00DCD6

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #51d5db;
/* rgb */ color: rgb(81, 213, 219);
/* oklch */ color: oklch(80.4% 0.114 199.4);

Tailwind

colors: {
  custom: {
    50: '#92e2e6',
    500: '#51d5db',
    950: '#000000',
  },
}

SCSS

$custom: #51d5db;
$custom-light: #92e2e6;
$custom-dark: #000000;

JSON

{
  "hex": "#51d5db",
  "rgb": {
    "r": 81,
    "g": 213,
    "b": 219
  },
  "hsl": {
    "h": 182.609,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.80382,
    "c": 0.1137,
    "h": 199.4
  },
  "luminance": 0.54452
}

Semantic roles & 50–950 ramp

primary

#51D5DB

secondary

#983C38

accent

#473FE9

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1515

muted

#7F8484

Preview Lab

Preview with #51D5DB

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

Preview Lab → · Contrast checker → · Palette generator →