#51AFDA#51AFDA

#51AFDA is a light, moderate cyan. Relative luminance 0.375; OKLCH L 71.5% C 0.108 H 230.7°. Best body text is #000000 at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#51AFDA
RGB	rgb(81, 175, 218)
HSL	hsl(199, 65%, 59%)
HSV	hsv(199, 63%, 85%)
CMYK	cmyk(62.8%, 19.7%, 0%, 14.5%)
CIE-LAB	lab(67.63, -14.91, -29.97)
CIE-LCH	lch(67.63, 33.48, 243.55°)
OKLab	oklab(71.46% -0.0685 -0.0838)
OKLCH	oklch(71.46% 0.108 230.7)
XYZ	xyz(31.3733, 37.4680, 71.8947)
Luminance	0.3747 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AFDA #DA7C51

analogous

#51DAC0 #51AFDA #516ADA

triadic

#51AFDA #DA51AF #AFDA51

tetradic

#51AFDA #C051DA #DA7C51 #6ADA51

square

#51AFDA #C051DA #DA7C51 #6ADA51

split-complementary

#51AFDA #DA516A #DAC051

monochromatic

#1F6E92 #2A94C4 #51AFDA #83C6E5 #B6DDEF

Accessibility & contrast

On white

2.47

#51AFDA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.49

#51AFDA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AFDA

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AFDA	#FFFFFF	#000000	##000000
##51AFDA	1.00	2.47	8.49	8.49
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.49	21.00	1.00	1.00
##000000	8.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99ADDC

Deuteranopia (green-blind)

#869FD9

Tritanopia (blue-blind)

#00BBBD

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #51afda;
/* rgb */ color: rgb(81, 175, 218);
/* oklch */ color: oklch(71.5% 0.108 230.7);

Tailwind

colors: {
  custom: {
    50: '#8fc6e5',
    500: '#51afda',
    950: '#000000',
  },
}

SCSS

$custom: #51afda;
$custom-light: #8fc6e5;
$custom-dark: #000000;

JSON

{
  "hex": "#51afda",
  "rgb": {
    "r": 81,
    "g": 175,
    "b": 218
  },
  "hsl": {
    "h": 198.832,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.71461,
    "c": 0.10826,
    "h": 230.7
  },
  "luminance": 0.37471
}

Semantic roles & 50–950 ramp

primary

#51AFDA

secondary

#DEB9A8

accent

#7540E8

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1315

muted

#7E8284

Preview Lab

Preview with #51AFDA

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

Preview Lab → · Contrast checker → · Palette generator →