#51C1CC#51C1CC

#51C1CC is a light, moderate teal. Relative luminance 0.442; OKLCH L 75.1% C 0.102 H 204.2°. Best body text is #000000 at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#51C1CC
RGB	rgb(81, 193, 204)
HSL	hsl(185, 55%, 56%)
HSV	hsv(185, 60%, 80%)
CMYK	cmyk(60.3%, 5.4%, 0%, 20%)
CIE-LAB	lab(72.39, -28.31, -15.04)
CIE-LCH	lch(72.39, 32.06, 207.98°)
OKLab	oklab(75.12% -0.0928 -0.0416)
OKLCH	oklch(75.12% 0.102 204.2)
XYZ	xyz(33.3578, 44.2454, 63.8973)
Luminance	0.4425 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C1CC #CC5C51

analogous

#51CC99 #51C1CC #5183CC

triadic

#51C1CC #CC51C1 #C1CC51

tetradic

#51C1CC #9951CC #CC5C51 #83CC51

square

#51C1CC #9951CC #CC5C51 #83CC51

split-complementary

#51C1CC #CC5183 #CC9951

monochromatic

#25767E #33A2AD #51C1CC #80D2DA #B0E3E8

Accessibility & contrast

On white

2.13

#51C1CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.85

#51C1CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C1CC

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C1CC	#FFFFFF	#000000	##000000
##51C1CC	1.00	2.13	9.85	9.85
#FFFFFF	2.13	1.00	21.00	21.00
#000000	9.85	21.00	1.00	1.00
##000000	9.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3BACD

Deuteranopia (green-blind)

#A0ACCC

Tritanopia (blue-blind)

#00C8C4

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #51c1cc;
/* rgb */ color: rgb(81, 193, 204);
/* oklch */ color: oklch(75.1% 0.102 204.2);

Tailwind

colors: {
  custom: {
    50: '#8fd4db',
    500: '#51c1cc',
    950: '#000000',
  },
}

SCSS

$custom: #51c1cc;
$custom-light: #8fd4db;
$custom-dark: #000000;

JSON

{
  "hex": "#51c1cc",
  "rgb": {
    "r": 81,
    "g": 193,
    "b": 204
  },
  "hsl": {
    "h": 185.366,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.75117,
    "c": 0.10172,
    "h": 204.2
  },
  "luminance": 0.44249
}

Semantic roles & 50–950 ramp

primary

#51C1CC

secondary

#D6A7A3

accent

#574ADE

background

#F9FDFD

surface

#F2FAFB

border

#CCD3D4

text

#0D1415

muted

#7E8383

Preview Lab

Preview with #51C1CC

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

Preview Lab → · Contrast checker → · Palette generator →