#51ABCF#51ABCF

#51ABCF is a light, moderate cyan. Relative luminance 0.354; OKLCH L 70.1% C 0.100 H 227.1°. Best body text is #000000 at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#51ABCF
RGB	rgb(81, 171, 207)
HSL	hsl(197, 57%, 56%)
HSV	hsv(197, 61%, 81%)
CMYK	cmyk(60.9%, 17.4%, 0%, 18.8%)
CIE-LAB	lab(66.04, -16.19, -26.35)
CIE-LCH	lch(66.04, 30.93, 238.43°)
OKLab	oklab(70.06% -0.0683 -0.0735)
OKLCH	oklch(70.06% 0.1 227.1)
XYZ	xyz(29.2143, 35.3772, 64.3083)
Luminance	0.3538 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51ABCF #CF7551

analogous

#51CFB4 #51ABCF #516CCF

triadic

#51ABCF #CF51AB #ABCF51

tetradic

#51ABCF #B451CF #CF7551 #6CCF51

square

#51ABCF #B451CF #CF7551 #6CCF51

split-complementary

#51ABCF #CF516C #CFB451

monochromatic

#246782 #318DB2 #51ABCF #81C2DC #B1D9E9

Accessibility & contrast

On white

2.60

#51ABCF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.08

#51ABCF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ABCF

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51ABCF	#FFFFFF	#000000	##000000
##51ABCF	1.00	2.60	8.08	8.08
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.08	21.00	1.00	1.00
##000000	8.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98A8D1

Deuteranopia (green-blind)

#869BCF

Tritanopia (blue-blind)

#00B5B7

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #51abcf;
/* rgb */ color: rgb(81, 171, 207);
/* oklch */ color: oklch(70.1% 0.100 227.1);

Tailwind

colors: {
  custom: {
    50: '#8dc4dd',
    500: '#51abcf',
    950: '#000000',
  },
}

SCSS

$custom: #51abcf;
$custom-light: #8dc4dd;
$custom-dark: #000000;

JSON

{
  "hex": "#51abcf",
  "rgb": {
    "r": 81,
    "g": 171,
    "b": 207
  },
  "hsl": {
    "h": 197.143,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.70057,
    "c": 0.10031,
    "h": 227.1
  },
  "luminance": 0.3538
}

Semantic roles & 50–950 ramp

primary

#51ABCF

secondary

#D8B3A4

accent

#7348E0

background

#F9FCFD

surface

#F1F8FB

border

#CBD1D4

text

#0D1215

muted

#7E8183

Preview Lab

Preview with #51ABCF

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

Preview Lab → · Contrast checker → · Palette generator →