#51C6DA#51C6DA

#51C6DA is a light, moderate teal. Relative luminance 0.472; OKLCH L 76.8% C 0.107 H 210.7°. Best body text is #000000 at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#51C6DA
RGB	rgb(81, 198, 218)
HSL	hsl(189, 65%, 59%)
HSV	hsv(189, 63%, 85%)
CMYK	cmyk(62.8%, 9.2%, 0%, 14.5%)
CIE-LAB	lab(74.31, -26.73, -19.74)
CIE-LCH	lch(74.31, 33.23, 216.45°)
OKLab	oklab(76.82% -0.0923 -0.0548)
OKLCH	oklch(76.82% 0.107 210.7)
XYZ	xyz(36.2370, 47.1956, 73.5160)
Luminance	0.4720 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C6DA #DA6551

analogous

#51DAA9 #51C6DA #5181DA

triadic

#51C6DA #DA51C6 #C6DA51

tetradic

#51C6DA #A951DA #DA6551 #81DA51

square

#51C6DA #A951DA #DA6551 #81DA51

split-complementary

#51C6DA #DA5181 #DAA951

monochromatic

#1F8192 #2AAEC4 #51C6DA #83D7E5 #B6E7EF

Accessibility & contrast

On white

2.01

#51C6DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.44

#51C6DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C6DA

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C6DA	#FFFFFF	#000000	##000000
##51C6DA	1.00	2.01	10.44	10.44
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.44	21.00	1.00	1.00
##000000	10.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5BFDB

Deuteranopia (green-blind)

#A1B0DA

Tritanopia (blue-blind)

#00CFCC

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #51c6da;
/* rgb */ color: rgb(81, 198, 218);
/* oklch */ color: oklch(76.8% 0.107 210.7);

Tailwind

colors: {
  custom: {
    50: '#90d7e5',
    500: '#51c6da',
    950: '#000000',
  },
}

SCSS

$custom: #51c6da;
$custom-light: #90d7e5;
$custom-dark: #000000;

JSON

{
  "hex": "#51c6da",
  "rgb": {
    "r": 81,
    "g": 198,
    "b": 218
  },
  "hsl": {
    "h": 188.759,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.76817,
    "c": 0.10736,
    "h": 210.7
  },
  "luminance": 0.47199
}

Semantic roles & 50–950 ramp

primary

#51C6DA

secondary

#DEB0A8

accent

#5840E8

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0E1415

muted

#7E8384

Preview Lab

Preview with #51C6DA

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

Preview Lab → · Contrast checker → · Palette generator →