#51C6F2#51C6F2

#51C6F2 is a light, vivid cyan. Relative luminance 0.485; OKLCH L 77.8% C 0.121 H 226.5°. Best body text is #000000 at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#51C6F2
RGB	rgb(81, 198, 242)
HSL	hsl(196, 86%, 63%)
HSV	hsv(196, 67%, 95%)
CMYK	cmyk(66.5%, 18.2%, 0%, 5.1%)
CIE-LAB	lab(75.17, -19.49, -31.39)
CIE-LCH	lch(75.17, 36.95, 238.16°)
OKLab	oklab(77.78% -0.0832 -0.0878)
OKLCH	oklch(77.78% 0.121 226.5)
XYZ	xyz(39.6080, 48.5440, 91.2697)
Luminance	0.4855 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C6F2 #F27D51

analogous

#51F2CE #51C6F2 #5175F2

triadic

#51C6F2 #F251C6 #C6F251

tetradic

#51C6F2 #CE51F2 #F27D51 #75F251

square

#51C6F2 #CE51F2 #F27D51 #75F251

split-complementary

#51C6F2 #F25175 #F2CE51

monochromatic

#0E8BBB #18B3EE #51C6F2 #8AD9F6 #C3EBFB

Accessibility & contrast

On white

1.96

#51C6F2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.71

#51C6F2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C6F2

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C6F2	#FFFFFF	#000000	##000000
##51C6F2	1.00	1.96	10.71	10.71
#FFFFFF	1.96	1.00	21.00	21.00
#000000	10.71	21.00	1.00	1.00
##000000	10.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEC2F4

Deuteranopia (green-blind)

#98B2F1

Tritanopia (blue-blind)

#00D3D4

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #51c6f2;
/* rgb */ color: rgb(81, 198, 242);
/* oklch */ color: oklch(77.8% 0.121 226.5);

Tailwind

colors: {
  custom: {
    50: '#93d7f6',
    500: '#51c6f2',
    950: '#000000',
  },
}

SCSS

$custom: #51c6f2;
$custom-light: #93d7f6;
$custom-dark: #000000;

JSON

{
  "hex": "#51c6f2",
  "rgb": {
    "r": 81,
    "g": 198,
    "b": 242
  },
  "hsl": {
    "h": 196.398,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.77782,
    "c": 0.12098,
    "h": 226.5
  },
  "luminance": 0.48548
}

Semantic roles & 50–950 ramp

primary

#51C6F2

secondary

#ECC2B3

accent

#4003E3

background

#F9FDFF

surface

#F2FAFE

border

#CCD3D6

text

#0E1417

muted

#7E8385

Preview Lab

Preview with #51C6F2

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

Preview Lab → · Contrast checker → · Palette generator →