#51CAE6#51CAE6

#51CAE6 is a light, moderate cyan. Relative luminance 0.497; OKLCH L 78.2% C 0.113 H 215.9°. Best body text is #000000 at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#51CAE6
RGB	rgb(81, 202, 230)
HSL	hsl(191, 75%, 61%)
HSV	hsv(191, 65%, 90%)
CMYK	cmyk(64.8%, 12.2%, 0%, 9.8%)
CIE-LAB	lab(75.88, -25.17, -23.83)
CIE-LCH	lch(75.88, 34.67, 223.43°)
OKLab	oklab(78.21% -0.0917 -0.0663)
OKLCH	oklch(78.21% 0.113 215.9)
XYZ	xyz(38.7909, 49.6994, 82.3962)
Luminance	0.4970 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CAE6 #E66D51

analogous

#51E6B7 #51CAE6 #517FE6

triadic

#51CAE6 #E651CA #CAE651

tetradic

#51CAE6 #B751E6 #E66D51 #7FE651

square

#51CAE6 #B751E6 #E66D51 #7FE651

split-complementary

#51CAE6 #E6517F #E6B751

monochromatic

#188AA5 #1FB7DA #51CAE6 #87DAEE #BCEBF5

Accessibility & contrast

On white

1.92

#51CAE6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.94

#51CAE6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CAE6

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CAE6	#FFFFFF	#000000	##000000
##51CAE6	1.00	1.92	10.94	10.94
#FFFFFF	1.92	1.00	21.00	21.00
#000000	10.94	21.00	1.00	1.00
##000000	10.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7C4E8

Deuteranopia (green-blind)

#A1B4E6

Tritanopia (blue-blind)

#00D4D3

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #51cae6;
/* rgb */ color: rgb(81, 202, 230);
/* oklch */ color: oklch(78.2% 0.113 215.9);

Tailwind

colors: {
  custom: {
    50: '#92daee',
    500: '#51cae6',
    950: '#000000',
  },
}

SCSS

$custom: #51cae6;
$custom-light: #92daee;
$custom-dark: #000000;

JSON

{
  "hex": "#51cae6",
  "rgb": {
    "r": 81,
    "g": 202,
    "b": 230
  },
  "hsl": {
    "h": 191.275,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.78214,
    "c": 0.11316,
    "h": 215.9
  },
  "luminance": 0.49704
}

Semantic roles & 50–950 ramp

primary

#51CAE6

secondary

#E5B8AD

accent

#340ED7

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1516

muted

#7E8384

Preview Lab

Preview with #51CAE6

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

Preview Lab → · Contrast checker → · Palette generator →