#51DEE9#51DEE9

#51DEE9 is a very light, moderate teal. Relative luminance 0.599; OKLCH L 83.0% C 0.120 H 202.5°. Best body text is #000000 at 12.98:1 contrast (WCAG AA passes).

Color values

HEX	#51DEE9
RGB	rgb(81, 222, 233)
HSL	hsl(184, 78%, 62%)
HSV	hsv(184, 65%, 91%)
CMYK	cmyk(65.2%, 4.7%, 0%, 8.6%)
CIE-LAB	lab(81.77, -33.99, -16.52)
CIE-LCH	lch(81.77, 37.79, 205.93°)
OKLab	oklab(82.99% -0.1105 -0.0458)
OKLCH	oklch(82.99% 0.12 202.5)
XYZ	xyz(44.2162, 59.8701, 86.3008)
Luminance	0.5988 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DEE9 #E95C51

analogous

#51E9A8 #51DEE9 #5192E9

triadic

#51DEE9 #E951DE #DEE951

tetradic

#51DEE9 #A851E9 #E95C51 #92E951

square

#51DEE9 #A851E9 #E95C51 #92E951

split-complementary

#51DEE9 #E95192 #E9A851

monochromatic

#169FAA #1CD2E0 #51DEE9 #87E8F0 #BEF3F7

Accessibility & contrast

On white

1.62

#51DEE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.98

#51DEE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DEE9

12.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DEE9	#FFFFFF	#000000	##000000
##51DEE9	1.00	1.62	12.98	12.98
#FFFFFF	1.62	1.00	21.00	21.00
#000000	12.98	21.00	1.00	1.00
##000000	12.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CED5EA

Deuteranopia (green-blind)

#B7C4EA

Tritanopia (blue-blind)

#00E6E1

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #51dee9;
/* rgb */ color: rgb(81, 222, 233);
/* oklch */ color: oklch(83.0% 0.120 202.5);

Tailwind

colors: {
  custom: {
    50: '#94e8f0',
    500: '#51dee9',
    950: '#000000',
  },
}

SCSS

$custom: #51dee9;
$custom-light: #94e8f0;
$custom-dark: #000000;

JSON

{
  "hex": "#51dee9",
  "rgb": {
    "r": 81,
    "g": 222,
    "b": 233
  },
  "hsl": {
    "h": 184.342,
    "s": 77.551,
    "l": 61.569
  },
  "oklch": {
    "l": 0.82986,
    "c": 0.11962,
    "h": 202.5
  },
  "luminance": 0.59875
}

Semantic roles & 50–950 ramp

primary

#51DEE9

secondary

#AB3C33

accent

#1B0CDA

background

#FCFEFF

surface

#F5FDFE

border

#CFD5D6

text

#0F1616

muted

#808485

Preview Lab

Preview with #51DEE9

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

Preview Lab → · Contrast checker → · Palette generator →