#51C8CC#51C8CC

#51C8CC is a light, moderate teal. Relative luminance 0.474; OKLCH L 76.8% C 0.105 H 198.3°. Best body text is #000000 at 10.48:1 contrast (WCAG AA passes).

Color values

HEX	#51C8CC
RGB	rgb(81, 200, 204)
HSL	hsl(182, 55%, 56%)
HSV	hsv(182, 60%, 80%)
CMYK	cmyk(60.3%, 2%, 0%, 20%)
CIE-LAB	lab(74.45, -31.70, -11.95)
CIE-LCH	lch(74.45, 33.88, 200.65°)
OKLab	oklab(76.78% -0.1001 -0.0331)
OKLCH	oklch(76.78% 0.105 198.3)
XYZ	xyz(34.9420, 47.4138, 64.4253)
Luminance	0.4742 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C8CC #CC5551

analogous

#51CC92 #51C8CC #518ACC

triadic

#51C8CC #CC51C8 #C8CC51

tetradic

#51C8CC #9251CC #CC5551 #8ACC51

square

#51C8CC #9251CC #CC5551 #8ACC51

split-complementary

#51C8CC #CC518A #CC9251

monochromatic

#257B7E #33A9AD #51C8CC #80D7DA #B0E6E8

Accessibility & contrast

On white

2.00

#51C8CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.48

#51C8CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C8CC

10.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C8CC	#FFFFFF	#000000	##000000
##51C8CC	1.00	2.00	10.48	10.48
#FFFFFF	2.00	1.00	21.00	21.00
#000000	10.48	21.00	1.00	1.00
##000000	10.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBBFCC

Deuteranopia (green-blind)

#A8B1CD

Tritanopia (blue-blind)

#00CEC9

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #51c8cc;
/* rgb */ color: rgb(81, 200, 204);
/* oklch */ color: oklch(76.8% 0.105 198.3);

Tailwind

colors: {
  custom: {
    50: '#8fd9db',
    500: '#51c8cc',
    950: '#000000',
  },
}

SCSS

$custom: #51c8cc;
$custom-light: #8fd9db;
$custom-dark: #000000;

JSON

{
  "hex": "#51c8cc",
  "rgb": {
    "r": 81,
    "g": 200,
    "b": 204
  },
  "hsl": {
    "h": 181.951,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.7678,
    "c": 0.10547,
    "h": 198.3
  },
  "luminance": 0.47418
}

Semantic roles & 50–950 ramp

primary

#51C8CC

secondary

#D6A5A3

accent

#4F4ADE

background

#F9FDFD

surface

#F2FAFB

border

#CCD3D4

text

#0E1415

muted

#7E8383

Preview Lab

Preview with #51C8CC

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

Preview Lab → · Contrast checker → · Palette generator →