#51AED7#51AED7

#51AED7 is a light, moderate cyan. Relative luminance 0.369; OKLCH L 71.1% C 0.106 H 229.7°. Best body text is #000000 at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#51AED7
RGB	rgb(81, 174, 215)
HSL	hsl(198, 63%, 58%)
HSV	hsv(198, 62%, 84%)
CMYK	cmyk(62.3%, 19.1%, 0%, 15.7%)
CIE-LAB	lab(67.22, -15.31, -28.95)
CIE-LCH	lch(67.22, 32.75, 242.12°)
OKLab	oklab(71.1% -0.0685 -0.0809)
OKLCH	oklch(71.1% 0.106 229.7)
XYZ	xyz(30.7903, 36.9246, 69.7813)
Luminance	0.3693 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51AED7 #D77A51

analogous

#51D7BD #51AED7 #516BD7

triadic

#51AED7 #D751AE #AED751

tetradic

#51AED7 #BD51D7 #D77A51 #6BD751

square

#51AED7 #BD51D7 #D77A51 #6BD751

split-complementary

#51AED7 #D7516B #D7BD51

monochromatic

#206C8D #2C92BF #51AED7 #83C5E2 #B5DCEE

Accessibility & contrast

On white

2.50

#51AED7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.39

#51AED7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51AED7

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51AED7	#FFFFFF	#000000	##000000
##51AED7	1.00	2.50	8.39	8.39
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.39	21.00	1.00	1.00
##000000	8.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99ABD9

Deuteranopia (green-blind)

#869ED6

Tritanopia (blue-blind)

#00B9BB

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #51aed7;
/* rgb */ color: rgb(81, 174, 215);
/* oklch */ color: oklch(71.1% 0.106 229.7);

Tailwind

colors: {
  custom: {
    50: '#8ec6e3',
    500: '#51aed7',
    950: '#000000',
  },
}

SCSS

$custom: #51aed7;
$custom-light: #8ec6e3;
$custom-dark: #000000;

JSON

{
  "hex": "#51aed7",
  "rgb": {
    "r": 81,
    "g": 174,
    "b": 215
  },
  "hsl": {
    "h": 198.358,
    "s": 62.617,
    "l": 58.039
  },
  "oklch": {
    "l": 0.71098,
    "c": 0.10602,
    "h": 229.7
  },
  "luminance": 0.36928
}

Semantic roles & 50–950 ramp

primary

#51AED7

secondary

#DDB8A7

accent

#7442E6

background

#F9FCFD

surface

#F2F8FB

border

#CCD1D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #51AED7

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

Preview Lab → · Contrast checker → · Palette generator →