#51C8DF#51C8DF

#51C8DF is a light, moderate teal. Relative luminance 0.484; OKLCH L 77.5% C 0.110 H 212.6°. Best body text is #000000 at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#51C8DF
RGB	rgb(81, 200, 223)
HSL	hsl(190, 69%, 60%)
HSV	hsv(190, 64%, 87%)
CMYK	cmyk(63.7%, 10.3%, 0%, 12.5%)
CIE-LAB	lab(75.06, -26.25, -21.31)
CIE-LCH	lch(75.06, 33.81, 219.06°)
OKLab	oklab(77.48% -0.0924 -0.0592)
OKLCH	oklch(77.48% 0.11 212.6)
XYZ	xyz(37.3614, 48.3816, 77.1673)
Luminance	0.4839 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C8DF #DF6851

analogous

#51DFAF #51C8DF #5181DF

triadic

#51C8DF #DF51C8 #C8DF51

tetradic

#51C8DF #AF51DF #DF6851 #81DF51

square

#51C8DF #AF51DF #DF6851 #81DF51

split-complementary

#51C8DF #DF5181 #DFAF51

monochromatic

#1C8599 #26B2CD #51C8DF #85D8E9 #B8E9F2

Accessibility & contrast

On white

1.97

#51C8DF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.68

#51C8DF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C8DF

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C8DF	#FFFFFF	#000000	##000000
##51C8DF	1.00	1.97	10.68	10.68
#FFFFFF	1.97	1.00	21.00	21.00
#000000	10.68	21.00	1.00	1.00
##000000	10.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6C2E0

Deuteranopia (green-blind)

#A2B2DF

Tritanopia (blue-blind)

#00D1CF

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #51c8df;
/* rgb */ color: rgb(81, 200, 223);
/* oklch */ color: oklch(77.5% 0.110 212.6);

Tailwind

colors: {
  custom: {
    50: '#91d9e9',
    500: '#51c8df',
    950: '#000000',
  },
}

SCSS

$custom: #51c8df;
$custom-light: #91d9e9;
$custom-dark: #000000;

JSON

{
  "hex": "#51c8df",
  "rgb": {
    "r": 81,
    "g": 200,
    "b": 223
  },
  "hsl": {
    "h": 189.718,
    "s": 68.932,
    "l": 59.608
  },
  "oklch": {
    "l": 0.77476,
    "c": 0.10973,
    "h": 212.6
  },
  "luminance": 0.48386
}

Semantic roles & 50–950 ramp

primary

#51C8DF

secondary

#E1B3AA

accent

#583CEC

background

#F9FDFE

surface

#F2FAFC

border

#CCD3D5

text

#0E1416

muted

#7E8384

Preview Lab

Preview with #51C8DF

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

Preview Lab → · Contrast checker → · Palette generator →