#51D3DE#51D3DE

#51D3DE is a light, moderate teal. Relative luminance 0.536; OKLCH L 80.0% C 0.113 H 203.1°. Best body text is #000000 at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#51D3DE
RGB	rgb(81, 211, 222)
HSL	hsl(185, 68%, 59%)
HSV	hsv(185, 64%, 87%)
CMYK	cmyk(63.5%, 5%, 0%, 12.9%)
CIE-LAB	lab(78.23, -31.90, -15.98)
CIE-LCH	lch(78.23, 35.67, 206.61°)
OKLab	oklab(80.02% -0.104 -0.0443)
OKLCH	oklch(80.02% 0.113 203.1)
XYZ	xyz(39.8668, 53.6074, 77.3393)
Luminance	0.5361 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D3DE #DE5C51

analogous

#51DEA3 #51D3DE #518DDE

triadic

#51D3DE #DE51D3 #D3DE51

tetradic

#51D3DE #A351DE #DE5C51 #8DDE51

square

#51D3DE #A351DE #DE5C51 #8DDE51

split-complementary

#51D3DE #DE518D #DEA351

monochromatic

#1D8E98 #27BECB #51D3DE #84E0E8 #B8EDF2

Accessibility & contrast

On white

1.79

#51D3DE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.72

#51D3DE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D3DE

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D3DE	#FFFFFF	#000000	##000000
##51D3DE	1.00	1.79	11.72	11.72
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.72	21.00	1.00	1.00
##000000	11.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3CBDF

Deuteranopia (green-blind)

#AEBBDF

Tritanopia (blue-blind)

#00DBD6

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #51d3de;
/* rgb */ color: rgb(81, 211, 222);
/* oklch */ color: oklch(80.0% 0.113 203.1);

Tailwind

colors: {
  custom: {
    50: '#92e1e8',
    500: '#51d3de',
    950: '#000000',
  },
}

SCSS

$custom: #51d3de;
$custom-light: #92e1e8;
$custom-dark: #000000;

JSON

{
  "hex": "#51d3de",
  "rgb": {
    "r": 81,
    "g": 211,
    "b": 222
  },
  "hsl": {
    "h": 184.681,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.80017,
    "c": 0.11301,
    "h": 203.1
  },
  "luminance": 0.53612
}

Semantic roles & 50–950 ramp

primary

#51D3DE

secondary

#9C3F37

accent

#4A3DEB

background

#FCFEFE

surface

#F5FCFC

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #51D3DE

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

Preview Lab → · Contrast checker → · Palette generator →