#51D7E5#51D7E5

#51D7E5 is a light, moderate teal. Relative luminance 0.560; OKLCH L 81.2% C 0.116 H 204.9°. Best body text is #000000 at 12.20:1 contrast (WCAG AA passes).

Color values

HEX	#51D7E5
RGB	rgb(81, 215, 229)
HSL	hsl(186, 74%, 61%)
HSV	hsv(186, 65%, 90%)
CMYK	cmyk(64.6%, 6.1%, 0%, 10.2%)
CIE-LAB	lab(79.62, -31.81, -17.64)
CIE-LCH	lch(79.62, 36.37, 209.01°)
OKLab	oklab(81.21% -0.1051 -0.0489)
OKLCH	oklch(81.21% 0.116 204.9)
XYZ	xyz(41.8306, 56.0027, 82.7186)
Luminance	0.5601 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D7E5 #E55F51

analogous

#51E5A9 #51D7E5 #518DE5

triadic

#51D7E5 #E551D7 #D7E551

tetradic

#51D7E5 #A951E5 #E55F51 #8DE551

square

#51D7E5 #A951E5 #E55F51 #8DE551

split-complementary

#51D7E5 #E5518D #E5A951

monochromatic

#1896A3 #20C7D8 #51D7E5 #86E3ED #BBEFF5

Accessibility & contrast

On white

1.72

#51D7E5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.20

#51D7E5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D7E5

12.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D7E5	#FFFFFF	#000000	##000000
##51D7E5	1.00	1.72	12.20	12.20
#FFFFFF	1.72	1.00	21.00	21.00
#000000	12.20	21.00	1.00	1.00
##000000	12.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6CFE6

Deuteranopia (green-blind)

#B0BEE5

Tritanopia (blue-blind)

#00E0DB

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #51d7e5;
/* rgb */ color: rgb(81, 215, 229);
/* oklch */ color: oklch(81.2% 0.116 204.9);

Tailwind

colors: {
  custom: {
    50: '#93e3ed',
    500: '#51d7e5',
    950: '#000000',
  },
}

SCSS

$custom: #51d7e5;
$custom-light: #93e3ed;
$custom-dark: #000000;

JSON

{
  "hex": "#51d7e5",
  "rgb": {
    "r": 81,
    "g": 215,
    "b": 229
  },
  "hsl": {
    "h": 185.676,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.81207,
    "c": 0.11597,
    "h": 204.9
  },
  "luminance": 0.56007
}

Semantic roles & 50–950 ramp

primary

#51D7E5

secondary

#A63F35

accent

#220FD6

background

#FCFEFE

surface

#F5FCFD

border

#CFD5D5

text

#0E1516

muted

#7F8484

Preview Lab

Preview with #51D7E5

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

Preview Lab → · Contrast checker → · Palette generator →