#51D2E5#51D2E5

#51D2E5 is a light, moderate teal. Relative luminance 0.535; OKLCH L 80.0% C 0.114 H 208.8°. Best body text is #000000 at 11.70:1 contrast (WCAG AA passes).

Color values

HEX	#51D2E5
RGB	rgb(81, 210, 229)
HSL	hsl(188, 74%, 61%)
HSV	hsv(188, 65%, 90%)
CMYK	cmyk(64.6%, 8.3%, 0%, 10.2%)
CIE-LAB	lab(78.17, -29.40, -19.83)
CIE-LCH	lch(78.17, 35.46, 213.99°)
OKLab	oklab(80.04% -0.1001 -0.055)
OKLCH	oklch(80.04% 0.114 208.8)
XYZ	xyz(40.5768, 53.4952, 82.3007)
Luminance	0.5350 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D2E5 #E56451

analogous

#51E5AE #51D2E5 #5188E5

triadic

#51D2E5 #E551D2 #D2E551

tetradic

#51D2E5 #AE51E5 #E56451 #88E551

square

#51D2E5 #AE51E5 #E56451 #88E551

split-complementary

#51D2E5 #E55188 #E5AE51

monochromatic

#1891A3 #20C1D8 #51D2E5 #86E0ED #BBEEF5

Accessibility & contrast

On white

1.79

#51D2E5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.70

#51D2E5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D2E5

11.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D2E5	#FFFFFF	#000000	##000000
##51D2E5	1.00	1.79	11.70	11.70
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.70	21.00	1.00	1.00
##000000	11.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1CAE6

Deuteranopia (green-blind)

#ABBAE5

Tritanopia (blue-blind)

#00DBD8

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #51d2e5;
/* rgb */ color: rgb(81, 210, 229);
/* oklch */ color: oklch(80.0% 0.114 208.8);

Tailwind

colors: {
  custom: {
    50: '#92e0ed',
    500: '#51d2e5',
    950: '#000000',
  },
}

SCSS

$custom: #51d2e5;
$custom-light: #92e0ed;
$custom-dark: #000000;

JSON

{
  "hex": "#51d2e5",
  "rgb": {
    "r": 81,
    "g": 210,
    "b": 229
  },
  "hsl": {
    "h": 187.703,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.80038,
    "c": 0.11426,
    "h": 208.8
  },
  "luminance": 0.535
}

Semantic roles & 50–950 ramp

primary

#51D2E5

secondary

#A64335

accent

#290FD6

background

#FCFEFE

surface

#F5FCFD

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #51D2E5

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

Preview Lab → · Contrast checker → · Palette generator →