#51CDDF#51CDDF

#51CDDF is a light, moderate teal. Relative luminance 0.507; OKLCH L 78.6% C 0.111 H 208.5°. Best body text is #000000 at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#51CDDF
RGB	rgb(81, 205, 223)
HSL	hsl(188, 69%, 60%)
HSV	hsv(188, 64%, 87%)
CMYK	cmyk(63.7%, 8.1%, 0%, 12.5%)
CIE-LAB	lab(76.52, -28.71, -19.10)
CIE-LCH	lch(76.52, 34.49, 213.63°)
OKLab	oklab(78.65% -0.0975 -0.053)
OKLCH	oklch(78.65% 0.111 208.5)
XYZ	xyz(38.5383, 50.7355, 77.5596)
Luminance	0.5074 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CDDF #DF6351

analogous

#51DFAA #51CDDF #5186DF

triadic

#51CDDF #DF51CD #CDDF51

tetradic

#51CDDF #AA51DF #DF6351 #86DF51

square

#51CDDF #AA51DF #DF6351 #86DF51

split-complementary

#51CDDF #DF5186 #DFAA51

monochromatic

#1C8A99 #26B8CD #51CDDF #85DCE9 #B8EBF2

Accessibility & contrast

On white

1.88

#51CDDF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.15

#51CDDF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CDDF

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CDDF	#FFFFFF	#000000	##000000
##51CDDF	1.00	1.88	11.15	11.15
#FFFFFF	1.88	1.00	21.00	21.00
#000000	11.15	21.00	1.00	1.00
##000000	11.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCC6E0

Deuteranopia (green-blind)

#A7B6DF

Tritanopia (blue-blind)

#00D6D2

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #51cddf;
/* rgb */ color: rgb(81, 205, 223);
/* oklch */ color: oklch(78.6% 0.111 208.5);

Tailwind

colors: {
  custom: {
    50: '#91dce9',
    500: '#51cddf',
    950: '#000000',
  },
}

SCSS

$custom: #51cddf;
$custom-light: #91dce9;
$custom-dark: #000000;

JSON

{
  "hex": "#51cddf",
  "rgb": {
    "r": 81,
    "g": 205,
    "b": 223
  },
  "hsl": {
    "h": 187.606,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.78646,
    "c": 0.11095,
    "h": 208.5
  },
  "luminance": 0.5074
}

Semantic roles & 50–950 ramp

primary

#51CDDF

secondary

#9D4437

accent

#523CEC

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #51CDDF

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

Preview Lab → · Contrast checker → · Palette generator →