#51D0F2#51D0F2

#51D0F2 is a light, moderate cyan. Relative luminance 0.533; OKLCH L 80.1% C 0.120 H 218.9°. Best body text is #000000 at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#51D0F2
RGB	rgb(81, 208, 242)
HSL	hsl(193, 86%, 63%)
HSV	hsv(193, 67%, 95%)
CMYK	cmyk(66.5%, 14%, 0%, 5.1%)
CIE-LAB	lab(78.03, -24.57, -26.99)
CIE-LCH	lch(78.03, 36.50, 227.69°)
OKLab	oklab(80.08% -0.0931 -0.0752)
OKLCH	oklch(80.08% 0.12 218.9)
XYZ	xyz(41.9696, 53.2673, 92.0569)
Luminance	0.5327 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D0F2 #F27351

analogous

#51F2C3 #51D0F2 #517FF2

triadic

#51D0F2 #F251D0 #D0F251

tetradic

#51D0F2 #C351F2 #F27351 #7FF251

square

#51D0F2 #C351F2 #F27351 #7FF251

split-complementary

#51D0F2 #F2517F #F2C351

monochromatic

#0E96BB #18C1EE #51D0F2 #8ADFF6 #C3EFFB

Accessibility & contrast

On white

1.80

#51D0F2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.65

#51D0F2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D0F2

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D0F2	#FFFFFF	#000000	##000000
##51D0F2	1.00	1.80	11.65	11.65
#FFFFFF	1.80	1.00	21.00	21.00
#000000	11.65	21.00	1.00	1.00
##000000	11.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBCAF4

Deuteranopia (green-blind)

#A4BAF2

Tritanopia (blue-blind)

#00DBDB

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #51d0f2;
/* rgb */ color: rgb(81, 208, 242);
/* oklch */ color: oklch(80.1% 0.120 218.9);

Tailwind

colors: {
  custom: {
    50: '#94def6',
    500: '#51d0f2',
    950: '#000000',
  },
}

SCSS

$custom: #51d0f2;
$custom-light: #94def6;
$custom-dark: #000000;

JSON

{
  "hex": "#51d0f2",
  "rgb": {
    "r": 81,
    "g": 208,
    "b": 242
  },
  "hsl": {
    "h": 192.671,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.80077,
    "c": 0.1197,
    "h": 218.9
  },
  "luminance": 0.53272
}

Semantic roles & 50–950 ramp

primary

#51D0F2

secondary

#B94B2E

accent

#3203E3

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #51D0F2

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

Preview Lab → · Contrast checker → · Palette generator →