#51AFDD#51AFDD

#51AFDD is a light, moderate cyan. Relative luminance 0.376; OKLCH L 71.6% C 0.111 H 232.5°. Best body text is #000000 at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#51AFDD
RGB	rgb(81, 175, 221)
HSL	hsl(200, 67%, 59%)
HSV	hsv(200, 63%, 87%)
CMYK	cmyk(63.3%, 20.8%, 0%, 13.3%)
CIE-LAB	lab(67.74, -13.97, -31.44)
CIE-LCH	lch(67.74, 34.40, 246.04°)
OKLab	oklab(71.59% -0.0674 -0.088)
OKLCH	oklch(71.59% 0.111 232.5)
XYZ	xyz(31.7694, 37.6265, 73.9810)
Luminance	0.3763 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AFDD #DD7F51

analogous

#51DDC5 #51AFDD #5169DD

triadic

#51AFDD #DD51AF #AFDD51

tetradic

#51AFDD #C551DD #DD7F51 #69DD51

square

#51AFDD #C551DD #DD7F51 #69DD51

split-complementary

#51AFDD #DD5169 #DDC551

monochromatic

#1D6F96 #2794C9 #51AFDD #84C7E7 #B7DEF1

Accessibility & contrast

On white

2.46

#51AFDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.53

#51AFDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AFDD

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AFDD	#FFFFFF	#000000	##000000
##51AFDD	1.00	2.46	8.53	8.53
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.53	21.00	1.00	1.00
##000000	8.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98ADDF

Deuteranopia (green-blind)

#859FDC

Tritanopia (blue-blind)

#00BBBE

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #51afdd;
/* rgb */ color: rgb(81, 175, 221);
/* oklch */ color: oklch(71.6% 0.111 232.5);

Tailwind

colors: {
  custom: {
    50: '#8fc6e7',
    500: '#51afdd',
    950: '#000000',
  },
}

SCSS

$custom: #51afdd;
$custom-light: #8fc6e7;
$custom-dark: #000000;

JSON

{
  "hex": "#51afdd",
  "rgb": {
    "r": 81,
    "g": 175,
    "b": 221
  },
  "hsl": {
    "h": 199.714,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.71593,
    "c": 0.11089,
    "h": 232.5
  },
  "luminance": 0.3763
}

Semantic roles & 50–950 ramp

primary

#51AFDD

secondary

#E0BCAA

accent

#763EEA

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #51AFDD

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

Preview Lab → · Contrast checker → · Palette generator →