#51DDE9#51DDE9

#51DDE9 is a very light, moderate teal. Relative luminance 0.593; OKLCH L 82.8% C 0.119 H 203.2°. Best body text is #000000 at 12.87:1 contrast (WCAG AA passes).

Color values

HEX	#51DDE9
RGB	rgb(81, 221, 233)
HSL	hsl(185, 78%, 62%)
HSV	hsv(185, 65%, 91%)
CMYK	cmyk(65.2%, 5.2%, 0%, 8.6%)
CIE-LAB	lab(81.48, -33.52, -16.96)
CIE-LCH	lch(81.48, 37.56, 206.84°)
OKLab	oklab(82.75% -0.1095 -0.047)
OKLCH	oklch(82.75% 0.119 203.2)
XYZ	xyz(43.9514, 59.3405, 86.2125)
Luminance	0.5935 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DDE9 #E95D51

analogous

#51E9A9 #51DDE9 #5191E9

triadic

#51DDE9 #E951DD #DDE951

tetradic

#51DDE9 #A951E9 #E95D51 #91E951

square

#51DDE9 #A951E9 #E95D51 #91E951

split-complementary

#51DDE9 #E95191 #E9A951

monochromatic

#169EAA #1CD1E0 #51DDE9 #87E8F0 #BEF2F7

Accessibility & contrast

On white

1.63

#51DDE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.87

#51DDE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DDE9

12.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DDE9	#FFFFFF	#000000	##000000
##51DDE9	1.00	1.63	12.87	12.87
#FFFFFF	1.63	1.00	21.00	21.00
#000000	12.87	21.00	1.00	1.00
##000000	12.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CCD4EA

Deuteranopia (green-blind)

#B6C3EA

Tritanopia (blue-blind)

#00E5E0

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #51dde9;
/* rgb */ color: rgb(81, 221, 233);
/* oklch */ color: oklch(82.8% 0.119 203.2);

Tailwind

colors: {
  custom: {
    50: '#94e8f0',
    500: '#51dde9',
    950: '#000000',
  },
}

SCSS

$custom: #51dde9;
$custom-light: #94e8f0;
$custom-dark: #000000;

JSON

{
  "hex": "#51dde9",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 233
  },
  "hsl": {
    "h": 184.737,
    "s": 77.551,
    "l": 61.569
  },
  "oklch": {
    "l": 0.82752,
    "c": 0.11917,
    "h": 203.2
  },
  "luminance": 0.59345
}

Semantic roles & 50–950 ramp

primary

#51DDE9

secondary

#AB3C33

accent

#1C0CDA

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1616

muted

#808485

Preview Lab

Preview with #51DDE9

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

Preview Lab → · Contrast checker → · Palette generator →