#51C7E7#51C7E7

#51C7E7 is a light, moderate cyan. Relative luminance 0.484; OKLCH L 77.6% C 0.114 H 219.0°. Best body text is #000000 at 10.67:1 contrast (WCAG AA passes).

Color values

HEX	#51C7E7
RGB	rgb(81, 199, 231)
HSL	hsl(193, 76%, 61%)
HSV	hsv(193, 65%, 91%)
CMYK	cmyk(64.9%, 13.9%, 0%, 9.4%)
CIE-LAB	lab(75.05, -23.37, -25.64)
CIE-LCH	lch(75.05, 34.69, 227.66°)
OKLab	oklab(77.56% -0.0883 -0.0714)
OKLCH	oklch(77.56% 0.114 219)
XYZ	xyz(38.2347, 48.3616, 82.9055)
Luminance	0.4837 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C7E7 #E77151

analogous

#51E7BC #51C7E7 #517CE7

triadic

#51C7E7 #E751C7 #C7E751

tetradic

#51C7E7 #BC51E7 #E77151 #7CE751

square

#51C7E7 #BC51E7 #E77151 #7CE751

split-complementary

#51C7E7 #E7517C #E7BC51

monochromatic

#1788A7 #1EB4DC #51C7E7 #87D8EE #BDEAF6

Accessibility & contrast

On white

1.97

#51C7E7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.67

#51C7E7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C7E7

10.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C7E7	#FFFFFF	#000000	##000000
##51C7E7	1.00	1.97	10.67	10.67
#FFFFFF	1.97	1.00	21.00	21.00
#000000	10.67	21.00	1.00	1.00
##000000	10.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3C2E9

Deuteranopia (green-blind)

#9EB2E7

Tritanopia (blue-blind)

#00D2D1

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #51c7e7;
/* rgb */ color: rgb(81, 199, 231);
/* oklch */ color: oklch(77.6% 0.114 219.0);

Tailwind

colors: {
  custom: {
    50: '#92d8ee',
    500: '#51c7e7',
    950: '#000000',
  },
}

SCSS

$custom: #51c7e7;
$custom-light: #92d8ee;
$custom-dark: #000000;

JSON

{
  "hex": "#51c7e7",
  "rgb": {
    "r": 81,
    "g": 199,
    "b": 231
  },
  "hsl": {
    "h": 192.8,
    "s": 75.758,
    "l": 61.176
  },
  "oklch": {
    "l": 0.77558,
    "c": 0.11357,
    "h": 219
  },
  "luminance": 0.48366
}

Semantic roles & 50–950 ramp

primary

#51C7E7

secondary

#E6BAAE

accent

#390ED8

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0E1416

muted

#7E8384

Preview Lab

Preview with #51C7E7

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

Preview Lab → · Contrast checker → · Palette generator →