#51C2F2#51C2F2

#51C2F2 is a light, vivid cyan. Relative luminance 0.467; OKLCH L 76.9% C 0.122 H 229.5°. Best body text is #000000 at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#51C2F2
RGB	rgb(81, 194, 242)
HSL	hsl(198, 86%, 63%)
HSV	hsv(198, 67%, 95%)
CMYK	cmyk(66.5%, 19.8%, 0%, 5.1%)
CIE-LAB	lab(74.02, -17.42, -33.16)
CIE-LCH	lch(74.02, 37.45, 242.28°)
OKLab	oklab(76.87% -0.0793 -0.0929)
OKLCH	oklch(76.87% 0.122 229.5)
XYZ	xyz(38.7058, 46.7395, 90.9689)
Luminance	0.4674 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C2F2 #F28151

analogous

#51F2D1 #51C2F2 #5171F2

triadic

#51C2F2 #F251C2 #C2F251

tetradic

#51C2F2 #D151F2 #F28151 #71F251

square

#51C2F2 #D151F2 #F28151 #71F251

split-complementary

#51C2F2 #F25171 #F2D151

monochromatic

#0E87BB #18AEEE #51C2F2 #8AD6F6 #C3EAFB

Accessibility & contrast

On white

2.03

#51C2F2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.35

#51C2F2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C2F2

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C2F2	#FFFFFF	#000000	##000000
##51C2F2	1.00	2.03	10.35	10.35
#FFFFFF	2.03	1.00	21.00	21.00
#000000	10.35	21.00	1.00	1.00
##000000	10.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9BFF4

Deuteranopia (green-blind)

#93AFF1

Tritanopia (blue-blind)

#00CFD2

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #51c2f2;
/* rgb */ color: rgb(81, 194, 242);
/* oklch */ color: oklch(76.9% 0.122 229.5);

Tailwind

colors: {
  custom: {
    50: '#93d4f6',
    500: '#51c2f2',
    950: '#000000',
  },
}

SCSS

$custom: #51c2f2;
$custom-light: #93d4f6;
$custom-dark: #000000;

JSON

{
  "hex": "#51c2f2",
  "rgb": {
    "r": 81,
    "g": 194,
    "b": 242
  },
  "hsl": {
    "h": 197.888,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.76868,
    "c": 0.12211,
    "h": 229.5
  },
  "luminance": 0.46744
}

Semantic roles & 50–950 ramp

primary

#51C2F2

secondary

#ECC4B3

accent

#4603E3

background

#F9FDFF

surface

#F2FAFE

border

#CCD3D6

text

#0E1417

muted

#7E8385

Preview Lab

Preview with #51C2F2

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

Preview Lab → · Contrast checker → · Palette generator →