#51DDE4#51DDE4

#51DDE4 is a very light, moderate teal. Relative luminance 0.591; OKLCH L 82.6% C 0.119 H 199.9°. Best body text is #000000 at 12.81:1 contrast (WCAG AA passes).

Color values

HEX	#51DDE4
RGB	rgb(81, 221, 228)
HSL	hsl(183, 73%, 61%)
HSV	hsv(183, 64%, 89%)
CMYK	cmyk(64.5%, 3.1%, 0%, 10.6%)
CIE-LAB	lab(81.32, -34.93, -14.53)
CIE-LCH	lch(81.32, 37.83, 202.59°)
OKLab	oklab(82.58% -0.1115 -0.0403)
OKLCH	oklch(82.58% 0.119 199.9)
XYZ	xyz(43.2473, 59.0589, 82.5040)
Luminance	0.5906 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DDE4 #E45851

analogous

#51E4A1 #51DDE4 #5193E4

triadic

#51DDE4 #E451DD #DDE451

tetradic

#51DDE4 #A151E4 #E45851 #93E451

square

#51DDE4 #A151E4 #E45851 #93E451

split-complementary

#51DDE4 #E45193 #E4A151

monochromatic

#199BA2 #21CED7 #51DDE4 #86E7EC #BBF2F4

Accessibility & contrast

On white

1.64

#51DDE4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.81

#51DDE4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DDE4

12.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DDE4	#FFFFFF	#000000	##000000
##51DDE4	1.00	1.64	12.81	12.81
#FFFFFF	1.64	1.00	21.00	21.00
#000000	12.81	21.00	1.00	1.00
##000000	12.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CED4E5

Deuteranopia (green-blind)

#B7C3E5

Tritanopia (blue-blind)

#00E5DF

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #51dde4;
/* rgb */ color: rgb(81, 221, 228);
/* oklch */ color: oklch(82.6% 0.119 199.9);

Tailwind

colors: {
  custom: {
    50: '#93e8ec',
    500: '#51dde4',
    950: '#000000',
  },
}

SCSS

$custom: #51dde4;
$custom-light: #93e8ec;
$custom-dark: #000000;

JSON

{
  "hex": "#51dde4",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 228
  },
  "hsl": {
    "h": 182.857,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.82576,
    "c": 0.1186,
    "h": 199.9
  },
  "luminance": 0.59064
}

Semantic roles & 50–950 ramp

primary

#51DDE4

secondary

#A43A35

accent

#1A10D5

background

#FCFEFE

surface

#F5FCFD

border

#CFD5D5

text

#0F1616

muted

#808484

Preview Lab

Preview with #51DDE4

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

Preview Lab → · Contrast checker → · Palette generator →