#51CCE6#51CCE6

#51CCE6 is a light, moderate cyan. Relative luminance 0.506; OKLCH L 78.7% C 0.113 H 214.3°. Best body text is #000000 at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#51CCE6
RGB	rgb(81, 204, 230)
HSL	hsl(190, 75%, 61%)
HSV	hsv(190, 65%, 90%)
CMYK	cmyk(64.8%, 11.3%, 0%, 9.8%)
CIE-LAB	lab(76.46, -26.17, -22.95)
CIE-LCH	lch(76.46, 34.81, 221.25°)
OKLab	oklab(78.68% -0.0937 -0.0638)
OKLCH	oklch(78.68% 0.113 214.3)
XYZ	xyz(39.2632, 50.6440, 82.5536)
Luminance	0.5065 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CCE6 #E66B51

analogous

#51E6B5 #51CCE6 #5181E6

triadic

#51CCE6 #E651CC #CCE651

tetradic

#51CCE6 #B551E6 #E66B51 #81E651

square

#51CCE6 #B551E6 #E66B51 #81E651

split-complementary

#51CCE6 #E65181 #E6B551

monochromatic

#188CA5 #1FBADA #51CCE6 #87DCEE #BCEBF5

Accessibility & contrast

On white

1.89

#51CCE6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.13

#51CCE6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CCE6

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CCE6	#FFFFFF	#000000	##000000
##51CCE6	1.00	1.89	11.13	11.13
#FFFFFF	1.89	1.00	21.00	21.00
#000000	11.13	21.00	1.00	1.00
##000000	11.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9C6E8

Deuteranopia (green-blind)

#A4B6E6

Tritanopia (blue-blind)

#00D6D4

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #51cce6;
/* rgb */ color: rgb(81, 204, 230);
/* oklch */ color: oklch(78.7% 0.113 214.3);

Tailwind

colors: {
  custom: {
    50: '#92dbee',
    500: '#51cce6',
    950: '#000000',
  },
}

SCSS

$custom: #51cce6;
$custom-light: #92dbee;
$custom-dark: #000000;

JSON

{
  "hex": "#51cce6",
  "rgb": {
    "r": 81,
    "g": 204,
    "b": 230
  },
  "hsl": {
    "h": 190.47,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.78678,
    "c": 0.11337,
    "h": 214.3
  },
  "luminance": 0.50648
}

Semantic roles & 50–950 ramp

primary

#51CCE6

secondary

#A74834

accent

#310ED7

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1516

muted

#7F8485

Preview Lab

Preview with #51CCE6

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

Preview Lab → · Contrast checker → · Palette generator →