#51C8DD#51C8DD

#51C8DD is a light, moderate teal. Relative luminance 0.483; OKLCH L 77.4% C 0.109 H 211.2°. Best body text is #000000 at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#51C8DD
RGB	rgb(81, 200, 221)
HSL	hsl(189, 67%, 59%)
HSV	hsv(189, 63%, 87%)
CMYK	cmyk(63.3%, 9.5%, 0%, 13.3%)
CIE-LAB	lab(75.00, -26.84, -20.33)
CIE-LCH	lch(75.00, 33.67, 217.14°)
OKLab	oklab(77.4% -0.0932 -0.0564)
OKLCH	oklch(77.4% 0.109 211.2)
XYZ	xyz(37.0933, 48.2744, 75.7556)
Luminance	0.4828 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C8DD #DD6651

analogous

#51DDAC #51C8DD #5182DD

triadic

#51C8DD #DD51C8 #C8DD51

tetradic

#51C8DD #AC51DD #DD6651 #82DD51

square

#51C8DD #AC51DD #DD6651 #82DD51

split-complementary

#51C8DD #DD5182 #DDAC51

monochromatic

#1D8496 #27B1C9 #51C8DD #84D8E7 #B7E8F1

Accessibility & contrast

On white

1.97

#51C8DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.66

#51C8DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C8DD

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C8DD	#FFFFFF	#000000	##000000
##51C8DD	1.00	1.97	10.66	10.66
#FFFFFF	1.97	1.00	21.00	21.00
#000000	10.66	21.00	1.00	1.00
##000000	10.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7C1DE

Deuteranopia (green-blind)

#A2B2DD

Tritanopia (blue-blind)

#00D1CE

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #51c8dd;
/* rgb */ color: rgb(81, 200, 221);
/* oklch */ color: oklch(77.4% 0.109 211.2);

Tailwind

colors: {
  custom: {
    50: '#91d9e7',
    500: '#51c8dd',
    950: '#000000',
  },
}

SCSS

$custom: #51c8dd;
$custom-light: #91d9e7;
$custom-dark: #000000;

JSON

{
  "hex": "#51c8dd",
  "rgb": {
    "r": 81,
    "g": 200,
    "b": 221
  },
  "hsl": {
    "h": 189,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.77399,
    "c": 0.10894,
    "h": 211.2
  },
  "luminance": 0.48278
}

Semantic roles & 50–950 ramp

primary

#51C8DD

secondary

#E0B2AA

accent

#573EEA

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0E1416

muted

#7E8384

Preview Lab

Preview with #51C8DD

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

Preview Lab → · Contrast checker → · Palette generator →