#51E5F2#51E5F2

#51E5F2 is a very light, vivid teal. Relative luminance 0.642; OKLCH L 84.9% C 0.124 H 203.5°. Best body text is #000000 at 13.84:1 contrast (WCAG AA passes).

Color values

HEX	#51E5F2
RGB	rgb(81, 229, 242)
HSL	hsl(185, 86%, 63%)
HSV	hsv(185, 67%, 95%)
CMYK	cmyk(66.5%, 5.4%, 0%, 5.1%)
CIE-LAB	lab(84.07, -34.72, -17.83)
CIE-LCH	lch(84.07, 39.03, 207.18°)
OKLab	oklab(84.94% -0.1137 -0.0494)
OKLCH	oklch(84.94% 0.124 203.5)
XYZ	xyz(47.4327, 64.1934, 93.8779)
Luminance	0.6420 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E5F2 #F25E51

analogous

#51F2AE #51E5F2 #5194F2

triadic

#51E5F2 #F251E5 #E5F251

tetradic

#51E5F2 #AE51F2 #F25E51 #94F251

square

#51E5F2 #AE51F2 #F25E51 #94F251

split-complementary

#51E5F2 #F25194 #F2AE51

monochromatic

#0EADBB #18DCEE #51E5F2 #8AEEF6 #C3F6FB

Accessibility & contrast

On white

1.52

#51E5F2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.84

#51E5F2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E5F2

13.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E5F2	#FFFFFF	#000000	##000000
##51E5F2	1.00	1.52	13.84	13.84
#FFFFFF	1.52	1.00	21.00	21.00
#000000	13.84	21.00	1.00	1.00
##000000	13.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4DCF3

Deuteranopia (green-blind)

#BCCAF3

Tritanopia (blue-blind)

#00EEE9

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #51e5f2;
/* rgb */ color: rgb(81, 229, 242);
/* oklch */ color: oklch(84.9% 0.124 203.5);

Tailwind

colors: {
  custom: {
    50: '#95edf6',
    500: '#51e5f2',
    950: '#000000',
  },
}

SCSS

$custom: #51e5f2;
$custom-light: #95edf6;
$custom-dark: #000000;

JSON

{
  "hex": "#51e5f2",
  "rgb": {
    "r": 81,
    "g": 229,
    "b": 242
  },
  "hsl": {
    "h": 184.845,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.84936,
    "c": 0.12402,
    "h": 203.5
  },
  "luminance": 0.64199
}

Semantic roles & 50–950 ramp

primary

#51E5F2

secondary

#B9392E

accent

#1503E3

background

#FCFFFF

surface

#F5FEFE

border

#CFD6D6

text

#0F1617

muted

#808585

Preview Lab

Preview with #51E5F2

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

Preview Lab → · Contrast checker → · Palette generator →