#51D1DE#51D1DE

#51D1DE is a light, moderate teal. Relative luminance 0.526; OKLCH L 79.5% C 0.112 H 204.6°. Best body text is #000000 at 11.52:1 contrast (WCAG AA passes).

Color values

HEX	#51D1DE
RGB	rgb(81, 209, 222)
HSL	hsl(186, 68%, 59%)
HSV	hsv(186, 64%, 87%)
CMYK	cmyk(63.5%, 5.9%, 0%, 12.9%)
CIE-LAB	lab(77.65, -30.94, -16.86)
CIE-LCH	lch(77.65, 35.23, 208.58°)
OKLab	oklab(79.55% -0.1019 -0.0467)
OKLCH	oklch(79.55% 0.112 204.6)
XYZ	xyz(39.3730, 52.6199, 77.1747)
Luminance	0.5262 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D1DE #DE5E51

analogous

#51DEA5 #51D1DE #518BDE

triadic

#51D1DE #DE51D1 #D1DE51

tetradic

#51D1DE #A551DE #DE5E51 #8BDE51

square

#51D1DE #A551DE #DE5E51 #8BDE51

split-complementary

#51D1DE #DE518B #DEA551

monochromatic

#1D8C98 #27BCCB #51D1DE #84DFE8 #B8ECF2

Accessibility & contrast

On white

1.82

#51D1DE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.52

#51D1DE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D1DE

11.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D1DE	#FFFFFF	#000000	##000000
##51D1DE	1.00	1.82	11.52	11.52
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.52	21.00	1.00	1.00
##000000	11.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1C9DF

Deuteranopia (green-blind)

#ACB9DE

Tritanopia (blue-blind)

#00D9D5

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #51d1de;
/* rgb */ color: rgb(81, 209, 222);
/* oklch */ color: oklch(79.5% 0.112 204.6);

Tailwind

colors: {
  custom: {
    50: '#92dfe8',
    500: '#51d1de',
    950: '#000000',
  },
}

SCSS

$custom: #51d1de;
$custom-light: #92dfe8;
$custom-dark: #000000;

JSON

{
  "hex": "#51d1de",
  "rgb": {
    "r": 81,
    "g": 209,
    "b": 222
  },
  "hsl": {
    "h": 185.532,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.79547,
    "c": 0.11215,
    "h": 204.6
  },
  "luminance": 0.52624
}

Semantic roles & 50–950 ramp

primary

#51D1DE

secondary

#9C4137

accent

#4D3DEB

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #51D1DE

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

Preview Lab → · Contrast checker → · Palette generator →