#51ABDB#51ABDB

#51ABDB is a light, moderate cyan. Relative luminance 0.360; OKLCH L 70.6% C 0.111 H 234.7°. Best body text is #000000 at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#51ABDB
RGB	rgb(81, 171, 219)
HSL	hsl(201, 66%, 59%)
HSV	hsv(201, 63%, 86%)
CMYK	cmyk(63%, 21.9%, 0%, 14.1%)
CIE-LAB	lab(66.51, -12.45, -32.25)
CIE-LCH	lch(66.51, 34.57, 248.90°)
OKLab	oklab(70.58% -0.064 -0.0904)
OKLCH	oklch(70.58% 0.111 234.7)
XYZ	xyz(30.7375, 35.9865, 72.3303)
Luminance	0.3599 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51ABDB #DB8151

analogous

#51DBC6 #51ABDB #5166DB

triadic

#51ABDB #DB51AB #ABDB51

tetradic

#51ABDB #C651DB #DB8151 #66DB51

square

#51ABDB #C651DB #DB8151 #66DB51

split-complementary

#51ABDB #DB5166 #DBC651

monochromatic

#1E6B93 #298FC6 #51ABDB #84C3E5 #B6DCF0

Accessibility & contrast

On white

2.56

#51ABDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.20

#51ABDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51ABDB

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51ABDB	#FFFFFF	#000000	##000000
##51ABDB	1.00	2.56	8.20	8.20
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.20	21.00	1.00	1.00
##000000	8.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94AADD

Deuteranopia (green-blind)

#819CDA

Tritanopia (blue-blind)

#00B8BB

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #51abdb;
/* rgb */ color: rgb(81, 171, 219);
/* oklch */ color: oklch(70.6% 0.111 234.7);

Tailwind

colors: {
  custom: {
    50: '#8fc4e6',
    500: '#51abdb',
    950: '#000000',
  },
}

SCSS

$custom: #51abdb;
$custom-light: #8fc4e6;
$custom-dark: #000000;

JSON

{
  "hex": "#51abdb",
  "rgb": {
    "r": 81,
    "g": 171,
    "b": 219
  },
  "hsl": {
    "h": 200.87,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.70585,
    "c": 0.11073,
    "h": 234.7
  },
  "luminance": 0.3599
}

Semantic roles & 50–950 ramp

primary

#51ABDB

secondary

#DFBCA9

accent

#7A3FE9

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0D1216

muted

#7E8184

Preview Lab

Preview with #51ABDB

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

Preview Lab → · Contrast checker → · Palette generator →