#51FFE4#51FFE4

#51FFE4 is a very light, vivid teal. Relative luminance 0.789; OKLCH L 90.6% C 0.145 H 180.3°. Best body text is #000000 at 16.77:1 contrast (WCAG AA passes).

Color values

HEX	#51FFE4
RGB	rgb(81, 255, 228)
HSL	hsl(171, 100%, 66%)
HSV	hsv(171, 68%, 100%)
CMYK	cmyk(68.2%, 0%, 10.6%, 0%)
CIE-LAB	lab(91.17, -50.02, 0.05)
CIE-LCH	lch(91.17, 50.02, 179.95°)
OKLab	oklab(90.58% -0.1449 -0.0007)
OKLCH	oklch(90.58% 0.145 180.3)
XYZ	xyz(53.1502, 78.8646, 85.8050)
Luminance	0.7887 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51FFE4 #FF516C

analogous

#51FF8D #51FFE4 #51C3FF

triadic

#51FFE4 #E451FF #FFE451

tetradic

#51FFE4 #8D51FF #FF516C #C3FF51

square

#51FFE4 #8D51FF #FF516C #C3FF51

split-complementary

#51FFE4 #FF51C3 #FF8D51

monochromatic

#00D6B4 #14FFDB #51FFE4 #8EFFED #CBFFF7

Accessibility & contrast

On white

1.25

#51FFE4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.77

#51FFE4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51FFE4

16.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51FFE4	#FFFFFF	#000000	##000000
##51FFE4	1.00	1.25	16.77	16.77
#FFFFFF	1.25	1.00	21.00	21.00
#000000	16.77	21.00	1.00	1.00
##000000	16.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F4F0E3

Deuteranopia (green-blind)

#DCDEE6

Tritanopia (blue-blind)

#00FFF7

Achromatopsia (no color)

#E6E6E6

Design tokens & code

CSS

--color: #51ffe4;
/* rgb */ color: rgb(81, 255, 228);
/* oklch */ color: oklch(90.6% 0.145 180.3);

Tailwind

colors: {
  custom: {
    50: '#97ffec',
    500: '#51ffe4',
    950: '#000000',
  },
}

SCSS

$custom: #51ffe4;
$custom-light: #97ffec;
$custom-dark: #000000;

JSON

{
  "hex": "#51ffe4",
  "rgb": {
    "r": 81,
    "g": 255,
    "b": 228
  },
  "hsl": {
    "h": 170.69,
    "s": 100,
    "l": 65.882
  },
  "oklch": {
    "l": 0.90575,
    "c": 0.1449,
    "h": 180.3
  },
  "luminance": 0.78871
}

Semantic roles & 50–950 ramp

primary

#51FFE4

secondary

#D0253F

accent

#0024E6

background

#FCFFFE

surface

#F6FFFD

border

#D0D7D5

text

#0F1816

muted

#808684

Preview Lab

Preview with #51FFE4

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

Preview Lab → · Contrast checker → · Palette generator →