#51CEE7#51CEE7

#51CEE7 is a light, moderate cyan. Relative luminance 0.517; OKLCH L 79.2% C 0.114 H 213.3°. Best body text is #000000 at 11.33:1 contrast (WCAG AA passes).

Color values

HEX	#51CEE7
RGB	rgb(81, 206, 231)
HSL	hsl(190, 76%, 61%)
HSV	hsv(190, 65%, 91%)
CMYK	cmyk(64.9%, 10.8%, 0%, 9.4%)
CIE-LAB	lab(77.08, -26.86, -22.56)
CIE-LCH	lch(77.08, 35.08, 220.02°)
OKLab	oklab(79.18% -0.0953 -0.0627)
OKLCH	oklch(79.18% 0.114 213.3)
XYZ	xyz(39.8824, 51.6571, 83.4548)
Luminance	0.5166 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CEE7 #E76A51

analogous

#51E7B5 #51CEE7 #5183E7

triadic

#51CEE7 #E751CE #CEE751

tetradic

#51CEE7 #B551E7 #E76A51 #83E751

square

#51CEE7 #B551E7 #E76A51 #83E751

split-complementary

#51CEE7 #E75183 #E7B551

monochromatic

#178FA7 #1EBDDC #51CEE7 #87DDEE #BDECF6

Accessibility & contrast

On white

1.85

#51CEE7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.33

#51CEE7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CEE7

11.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CEE7	#FFFFFF	#000000	##000000
##51CEE7	1.00	1.85	11.33	11.33
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.33	21.00	1.00	1.00
##000000	11.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBC7E8

Deuteranopia (green-blind)

#A6B7E7

Tritanopia (blue-blind)

#00D8D6

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #51cee7;
/* rgb */ color: rgb(81, 206, 231);
/* oklch */ color: oklch(79.2% 0.114 213.3);

Tailwind

colors: {
  custom: {
    50: '#92ddee',
    500: '#51cee7',
    950: '#000000',
  },
}

SCSS

$custom: #51cee7;
$custom-light: #92ddee;
$custom-dark: #000000;

JSON

{
  "hex": "#51cee7",
  "rgb": {
    "r": 81,
    "g": 206,
    "b": 231
  },
  "hsl": {
    "h": 190,
    "s": 75.758,
    "l": 61.176
  },
  "oklch": {
    "l": 0.79182,
    "c": 0.1141,
    "h": 213.3
  },
  "luminance": 0.51661
}

Semantic roles & 50–950 ramp

primary

#51CEE7

secondary

#A84734

accent

#2F0ED8

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0E1516

muted

#7F8485

Preview Lab

Preview with #51CEE7

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

Preview Lab → · Contrast checker → · Palette generator →