#51D0E5#51D0E5

#51D0E5 is a light, moderate teal. Relative luminance 0.525; OKLCH L 79.6% C 0.114 H 210.4°. Best body text is #000000 at 11.50:1 contrast (WCAG AA passes).

Color values

HEX	#51D0E5
RGB	rgb(81, 208, 229)
HSL	hsl(189, 74%, 61%)
HSV	hsv(189, 65%, 90%)
CMYK	cmyk(64.6%, 9.2%, 0%, 10.2%)
CIE-LAB	lab(77.59, -28.43, -20.71)
CIE-LCH	lch(77.59, 35.17, 216.07°)
OKLab	oklab(79.57% -0.0981 -0.0575)
OKLCH	oklch(79.57% 0.114 210.4)
XYZ	xyz(40.0861, 52.5138, 82.1371)
Luminance	0.5252 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D0E5 #E56651

analogous

#51E5B0 #51D0E5 #5186E5

triadic

#51D0E5 #E551D0 #D0E551

tetradic

#51D0E5 #B051E5 #E56651 #86E551

square

#51D0E5 #B051E5 #E56651 #86E551

split-complementary

#51D0E5 #E55186 #E5B051

monochromatic

#1890A3 #20BED8 #51D0E5 #86DEED #BBEDF5

Accessibility & contrast

On white

1.83

#51D0E5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.50

#51D0E5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D0E5

11.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D0E5	#FFFFFF	#000000	##000000
##51D0E5	1.00	1.83	11.50	11.50
#FFFFFF	1.83	1.00	21.00	21.00
#000000	11.50	21.00	1.00	1.00
##000000	11.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BEC9E6

Deuteranopia (green-blind)

#A9B9E5

Tritanopia (blue-blind)

#00D9D6

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #51d0e5;
/* rgb */ color: rgb(81, 208, 229);
/* oklch */ color: oklch(79.6% 0.114 210.4);

Tailwind

colors: {
  custom: {
    50: '#92deed',
    500: '#51d0e5',
    950: '#000000',
  },
}

SCSS

$custom: #51d0e5;
$custom-light: #92deed;
$custom-dark: #000000;

JSON

{
  "hex": "#51d0e5",
  "rgb": {
    "r": 81,
    "g": 208,
    "b": 229
  },
  "hsl": {
    "h": 188.514,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.79572,
    "c": 0.11373,
    "h": 210.4
  },
  "luminance": 0.52518
}

Semantic roles & 50–950 ramp

primary

#51D0E5

secondary

#A64535

accent

#2C0FD6

background

#FCFEFE

surface

#F5FCFD

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #51D0E5

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

Preview Lab → · Contrast checker → · Palette generator →