#51E4F2#51E4F2

#51E4F2 is a very light, vivid teal. Relative luminance 0.636; OKLCH L 84.7% C 0.124 H 204.2°. Best body text is #000000 at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#51E4F2
RGB	rgb(81, 228, 242)
HSL	hsl(185, 86%, 63%)
HSV	hsv(185, 67%, 95%)
CMYK	cmyk(66.5%, 5.8%, 0%, 5.1%)
CIE-LAB	lab(83.78, -34.25, -18.26)
CIE-LCH	lch(83.78, 38.82, 208.06°)
OKLab	oklab(84.7% -0.1127 -0.0507)
OKLCH	oklch(84.7% 0.124 204.2)
XYZ	xyz(47.1568, 63.6416, 93.7860)
Luminance	0.6365 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E4F2 #F25F51

analogous

#51F2AF #51E4F2 #5194F2

triadic

#51E4F2 #F251E4 #E4F251

tetradic

#51E4F2 #AF51F2 #F25F51 #94F251

square

#51E4F2 #AF51F2 #F25F51 #94F251

split-complementary

#51E4F2 #F25194 #F2AF51

monochromatic

#0EACBB #18DBEE #51E4F2 #8AEDF6 #C3F6FB

Accessibility & contrast

On white

1.53

#51E4F2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.73

#51E4F2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E4F2

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E4F2	#FFFFFF	#000000	##000000
##51E4F2	1.00	1.53	13.73	13.73
#FFFFFF	1.53	1.00	21.00	21.00
#000000	13.73	21.00	1.00	1.00
##000000	13.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D2DBF3

Deuteranopia (green-blind)

#BBC9F3

Tritanopia (blue-blind)

#00EDE8

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #51e4f2;
/* rgb */ color: rgb(81, 228, 242);
/* oklch */ color: oklch(84.7% 0.124 204.2);

Tailwind

colors: {
  custom: {
    50: '#95edf6',
    500: '#51e4f2',
    950: '#000000',
  },
}

SCSS

$custom: #51e4f2;
$custom-light: #95edf6;
$custom-dark: #000000;

JSON

{
  "hex": "#51e4f2",
  "rgb": {
    "r": 81,
    "g": 228,
    "b": 242
  },
  "hsl": {
    "h": 185.217,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.84704,
    "c": 0.12361,
    "h": 204.2
  },
  "luminance": 0.63647
}

Semantic roles & 50–950 ramp

primary

#51E4F2

secondary

#B93A2E

accent

#1603E3

background

#FCFFFF

surface

#F5FEFE

border

#CFD6D6

text

#0F1617

muted

#808585

Preview Lab

Preview with #51E4F2

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

Preview Lab → · Contrast checker → · Palette generator →