#51C8D8#51C8D8

#51C8D8 is a light, moderate teal. Relative luminance 0.480; OKLCH L 77.2% C 0.107 H 207.5°. Best body text is #000000 at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#51C8D8
RGB	rgb(81, 200, 216)
HSL	hsl(187, 63%, 58%)
HSV	hsv(187, 63%, 85%)
CMYK	cmyk(62.5%, 7.4%, 0%, 15.3%)
CIE-LAB	lab(74.83, -28.30, -17.88)
CIE-LCH	lch(74.83, 33.47, 212.28°)
OKLab	oklab(77.21% -0.0952 -0.0496)
OKLCH	oklch(77.21% 0.107 207.5)
XYZ	xyz(36.4371, 48.0119, 72.2994)
Luminance	0.4802 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C8D8 #D86151

analogous

#51D8A4 #51C8D8 #5184D8

triadic

#51C8D8 #D851C8 #C8D851

tetradic

#51C8D8 #A451D8 #D86151 #84D851

square

#51C8D8 #A451D8 #D86151 #84D851

split-complementary

#51C8D8 #D85184 #D8A451

monochromatic

#20828F #2BAFC1 #51C8D8 #83D8E3 #B5E8EE

Accessibility & contrast

On white

1.98

#51C8D8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.60

#51C8D8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C8D8

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C8D8	#FFFFFF	#000000	##000000
##51C8D8	1.00	1.98	10.60	10.60
#FFFFFF	1.98	1.00	21.00	21.00
#000000	10.60	21.00	1.00	1.00
##000000	10.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8C1D9

Deuteranopia (green-blind)

#A4B2D8

Tritanopia (blue-blind)

#00D0CD

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #51c8d8;
/* rgb */ color: rgb(81, 200, 216);
/* oklch */ color: oklch(77.2% 0.107 207.5);

Tailwind

colors: {
  custom: {
    50: '#90d9e4',
    500: '#51c8d8',
    950: '#000000',
  },
}

SCSS

$custom: #51c8d8;
$custom-light: #90d9e4;
$custom-dark: #000000;

JSON

{
  "hex": "#51c8d8",
  "rgb": {
    "r": 81,
    "g": 200,
    "b": 216
  },
  "hsl": {
    "h": 187.111,
    "s": 63.38,
    "l": 58.235
  },
  "oklch": {
    "l": 0.77211,
    "c": 0.10732,
    "h": 207.5
  },
  "luminance": 0.48016
}

Semantic roles & 50–950 ramp

primary

#51C8D8

secondary

#DDAEA8

accent

#5541E6

background

#F9FDFD

surface

#F2FAFB

border

#CCD3D4

text

#0E1415

muted

#7E8383

Preview Lab

Preview with #51C8D8

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

Preview Lab → · Contrast checker → · Palette generator →