#51C8D9#51C8D9

#51C8D9 is a light, moderate teal. Relative luminance 0.481; OKLCH L 77.2% C 0.108 H 208.3°. Best body text is #000000 at 10.61:1 contrast (WCAG AA passes).

Color values

HEX	#51C8D9
RGB	rgb(81, 200, 217)
HSL	hsl(188, 64%, 58%)
HSV	hsv(188, 63%, 85%)
CMYK	cmyk(62.7%, 7.8%, 0%, 14.9%)
CIE-LAB	lab(74.87, -28.01, -18.37)
CIE-LCH	lch(74.87, 33.49, 213.26°)
OKLab	oklab(77.25% -0.0948 -0.0509)
OKLCH	oklch(77.25% 0.108 208.3)
XYZ	xyz(36.5667, 48.0637, 72.9823)
Luminance	0.4807 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C8D9 #D96251

analogous

#51D9A6 #51C8D9 #5184D9

triadic

#51C8D9 #D951C8 #C8D951

tetradic

#51C8D9 #A651D9 #D96251 #84D951

square

#51C8D9 #A651D9 #D96251 #84D951

split-complementary

#51C8D9 #D95184 #D9A651

monochromatic

#1F8290 #2AAFC2 #51C8D9 #83D8E4 #B5E8EF

Accessibility & contrast

On white

1.98

#51C8D9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.61

#51C8D9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C8D9

10.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C8D9	#FFFFFF	#000000	##000000
##51C8D9	1.00	1.98	10.61	10.61
#FFFFFF	1.98	1.00	21.00	21.00
#000000	10.61	21.00	1.00	1.00
##000000	10.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8C1DA

Deuteranopia (green-blind)

#A4B2D9

Tritanopia (blue-blind)

#00D0CD

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #51c8d9;
/* rgb */ color: rgb(81, 200, 217);
/* oklch */ color: oklch(77.2% 0.108 208.3);

Tailwind

colors: {
  custom: {
    50: '#90d9e4',
    500: '#51c8d9',
    950: '#000000',
  },
}

SCSS

$custom: #51c8d9;
$custom-light: #90d9e4;
$custom-dark: #000000;

JSON

{
  "hex": "#51c8d9",
  "rgb": {
    "r": 81,
    "g": 200,
    "b": 217
  },
  "hsl": {
    "h": 187.5,
    "s": 64.151,
    "l": 58.431
  },
  "oklch": {
    "l": 0.77249,
    "c": 0.1076,
    "h": 208.3
  },
  "luminance": 0.48068
}

Semantic roles & 50–950 ramp

primary

#51C8D9

secondary

#DEAFA8

accent

#5541E7

background

#F9FDFD

surface

#F2FAFB

border

#CCD3D4

text

#0E1415

muted

#7E8383

Preview Lab

Preview with #51C8D9

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

Preview Lab → · Contrast checker → · Palette generator →