#51EFFF#51EFFF

#51EFFF is a very light, vivid teal. Relative luminance 0.707; OKLCH L 87.7% C 0.130 H 204.9°. Best body text is #000000 at 15.14:1 contrast (WCAG AA passes).

Color values

HEX	#51EFFF
RGB	rgb(81, 239, 255)
HSL	hsl(186, 100%, 66%)
HSV	hsv(186, 68%, 100%)
CMYK	cmyk(68.2%, 6.3%, 0%, 0%)
CIE-LAB	lab(87.34, -35.69, -19.73)
CIE-LCH	lch(87.34, 40.78, 208.93°)
OKLab	oklab(87.71% -0.1182 -0.0548)
OKLCH	oklch(87.71% 0.13 204.9)
XYZ	xyz(52.3020, 70.6963, 105.4776)
Luminance	0.7070 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51EFFF #FF6151

analogous

#51FFB8 #51EFFF #5198FF

triadic

#51EFFF #FF51EF #EFFF51

tetradic

#51EFFF #B851FF #FF6151 #98FF51

square

#51EFFF #B851FF #FF6151 #98FF51

split-complementary

#51EFFF #FF5198 #FFB851

monochromatic

#00C2D6 #14E9FF #51EFFF #8EF5FF #CBFAFF

Accessibility & contrast

On white

1.39

#51EFFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.14

#51EFFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51EFFF

15.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51EFFF	#FFFFFF	#000000	##000000
##51EFFF	1.00	1.39	15.14	15.14
#FFFFFF	1.39	1.00	21.00	21.00
#000000	15.14	21.00	1.00	1.00
##000000	15.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DCE5FF

Deuteranopia (green-blind)

#C3D3FF

Tritanopia (blue-blind)

#00F9F4

Achromatopsia (no color)

#DBDBDB

Design tokens & code

CSS

--color: #51efff;
/* rgb */ color: rgb(81, 239, 255);
/* oklch */ color: oklch(87.7% 0.130 204.9);

Tailwind

colors: {
  custom: {
    50: '#97f4ff',
    500: '#51efff',
    950: '#000000',
  },
}

SCSS

$custom: #51efff;
$custom-light: #97f4ff;
$custom-dark: #000000;

JSON

{
  "hex": "#51efff",
  "rgb": {
    "r": 81,
    "g": 239,
    "b": 255
  },
  "hsl": {
    "h": 185.517,
    "s": 100,
    "l": 65.882
  },
  "oklch": {
    "l": 0.87714,
    "c": 0.13026,
    "h": 204.9
  },
  "luminance": 0.70702
}

Semantic roles & 50–950 ramp

primary

#51EFFF

secondary

#D03425

accent

#1500E6

background

#FCFFFF

surface

#F6FEFF

border

#D0D6D7

text

#0F1718

muted

#808586

Preview Lab

Preview with #51EFFF

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

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