#51ABC0#51ABC0

#51ABC0 is a light, moderate cyan. Relative luminance 0.347; OKLCH L 69.4% C 0.091 H 215.3°. Best body text is #000000 at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#51ABC0
RGB	rgb(81, 171, 192)
HSL	hsl(191, 47%, 54%)
HSV	hsv(191, 58%, 75%)
CMYK	cmyk(57.8%, 10.9%, 0%, 24.7%)
CIE-LAB	lab(65.50, -20.71, -18.87)
CIE-LCH	lch(65.50, 28.02, 222.33°)
OKLab	oklab(69.44% -0.074 -0.0523)
OKLCH	oklch(69.44% 0.091 215.3)
XYZ	xyz(27.4669, 34.6783, 55.1050)
Luminance	0.3468 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51ABC0 #C06651

analogous

#51C09D #51ABC0 #5173C0

triadic

#51ABC0 #C051AB #ABC051

tetradic

#51ABC0 #9D51C0 #C06651 #73C051

square

#51ABC0 #9D51C0 #C06651 #73C051

split-complementary

#51ABC0 #C05173 #C09D51

monochromatic

#28616F #38899B #51ABC0 #7EC1D0 #ABD6E1

Accessibility & contrast

On white

2.65

#51ABC0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.94

#51ABC0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ABC0

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51ABC0	#FFFFFF	#000000	##000000
##51ABC0	1.00	2.65	7.94	7.94
#FFFFFF	2.65	1.00	21.00	21.00
#000000	7.94	21.00	1.00	1.00
##000000	7.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CA6C1

Deuteranopia (green-blind)

#8C9AC0

Tritanopia (blue-blind)

#00B3B1

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #51abc0;
/* rgb */ color: rgb(81, 171, 192);
/* oklch */ color: oklch(69.4% 0.091 215.3);

Tailwind

colors: {
  custom: {
    50: '#8cc4d3',
    500: '#51abc0',
    950: '#000000',
  },
}

SCSS

$custom: #51abc0;
$custom-light: #8cc4d3;
$custom-dark: #000000;

JSON

{
  "hex": "#51abc0",
  "rgb": {
    "r": 81,
    "g": 171,
    "b": 192
  },
  "hsl": {
    "h": 191.351,
    "s": 46.835,
    "l": 53.529
  },
  "oklch": {
    "l": 0.69442,
    "c": 0.09064,
    "h": 215.3
  },
  "luminance": 0.34681
}

Semantic roles & 50–950 ramp

primary

#51ABC0

secondary

#CEA89F

accent

#6B51D6

background

#F9FCFC

surface

#F1F8F9

border

#CBD1D2

text

#0D1214

muted

#7E8182

Preview Lab

Preview with #51ABC0

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

Preview Lab → · Contrast checker → · Palette generator →