#51CFF2#51CFF2

#51CFF2 is a light, moderate cyan. Relative luminance 0.528; OKLCH L 79.8% C 0.120 H 219.7°. Best body text is #000000 at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#51CFF2
RGB	rgb(81, 207, 242)
HSL	hsl(193, 86%, 63%)
HSV	hsv(193, 67%, 95%)
CMYK	cmyk(66.5%, 14.5%, 0%, 5.1%)
CIE-LAB	lab(77.75, -24.07, -27.43)
CIE-LCH	lch(77.75, 36.49, 228.74°)
OKLab	oklab(79.85% -0.0921 -0.0765)
OKLCH	oklch(79.85% 0.12 219.7)
XYZ	xyz(41.7266, 52.7812, 91.9759)
Luminance	0.5279 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CFF2 #F27451

analogous

#51F2C4 #51CFF2 #517FF2

triadic

#51CFF2 #F251CF #CFF251

tetradic

#51CFF2 #C451F2 #F27451 #7FF251

square

#51CFF2 #C451F2 #F27451 #7FF251

split-complementary

#51CFF2 #F2517F #F2C451

monochromatic

#0E95BB #18BFEE #51CFF2 #8ADFF6 #C3EEFB

Accessibility & contrast

On white

1.82

#51CFF2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.56

#51CFF2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CFF2

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CFF2	#FFFFFF	#000000	##000000
##51CFF2	1.00	1.82	11.56	11.56
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.56	21.00	1.00	1.00
##000000	11.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9CAF4

Deuteranopia (green-blind)

#A3B9F2

Tritanopia (blue-blind)

#00DBDA

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #51cff2;
/* rgb */ color: rgb(81, 207, 242);
/* oklch */ color: oklch(79.8% 0.120 219.7);

Tailwind

colors: {
  custom: {
    50: '#93def6',
    500: '#51cff2',
    950: '#000000',
  },
}

SCSS

$custom: #51cff2;
$custom-light: #93def6;
$custom-dark: #000000;

JSON

{
  "hex": "#51cff2",
  "rgb": {
    "r": 81,
    "g": 207,
    "b": 242
  },
  "hsl": {
    "h": 193.043,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.79847,
    "c": 0.11974,
    "h": 219.7
  },
  "luminance": 0.52786
}

Semantic roles & 50–950 ramp

primary

#51CFF2

secondary

#B94C2E

accent

#3403E3

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #51CFF2

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

Preview Lab → · Contrast checker → · Palette generator →