#51E4F6#51E4F6

#51E4F6 is a very light, vivid teal. Relative luminance 0.639; OKLCH L 84.8% C 0.124 H 206.8°. Best body text is #000000 at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#51E4F6
RGB	rgb(81, 228, 246)
HSL	hsl(187, 90%, 64%)
HSV	hsv(187, 67%, 96%)
CMYK	cmyk(67.1%, 7.3%, 0%, 3.5%)
CIE-LAB	lab(83.91, -33.11, -20.18)
CIE-LCH	lch(83.91, 38.77, 211.36°)
OKLab	oklab(84.85% -0.1111 -0.056)
OKLCH	oklch(84.85% 0.124 206.8)
XYZ	xyz(47.7641, 63.8845, 96.9846)
Luminance	0.6389 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E4F6 #F66351

analogous

#51F6B5 #51E4F6 #5192F6

triadic

#51E4F6 #F651E4 #E4F651

tetradic

#51E4F6 #B551F6 #F66351 #92F651

square

#51E4F6 #B551F6 #F66351 #92F651

split-complementary

#51E4F6 #F65192 #F6B551

monochromatic

#0AAEC3 #17DBF3 #51E4F6 #8BEDF9 #C5F6FC

Accessibility & contrast

On white

1.52

#51E4F6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.78

#51E4F6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E4F6

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E4F6	#FFFFFF	#000000	##000000
##51E4F6	1.00	1.52	13.78	13.78
#FFFFFF	1.52	1.00	21.00	21.00
#000000	13.78	21.00	1.00	1.00
##000000	13.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1DBF7

Deuteranopia (green-blind)

#B9CAF6

Tritanopia (blue-blind)

#00EEE9

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #51e4f6;
/* rgb */ color: rgb(81, 228, 246);
/* oklch */ color: oklch(84.8% 0.124 206.8);

Tailwind

colors: {
  custom: {
    50: '#96edf9',
    500: '#51e4f6',
    950: '#000000',
  },
}

SCSS

$custom: #51e4f6;
$custom-light: #96edf9;
$custom-dark: #000000;

JSON

{
  "hex": "#51e4f6",
  "rgb": {
    "r": 81,
    "g": 228,
    "b": 246
  },
  "hsl": {
    "h": 186.545,
    "s": 90.164,
    "l": 64.118
  },
  "oklch": {
    "l": 0.84848,
    "c": 0.12447,
    "h": 206.8
  },
  "luminance": 0.6389
}

Semantic roles & 50–950 ramp

primary

#51E4F6

secondary

#C03C2B

accent

#1900E6

background

#FCFFFF

surface

#F5FEFF

border

#CFD6D7

text

#0F1617

muted

#808585

Preview Lab

Preview with #51E4F6

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

Preview Lab → · Contrast checker → · Palette generator →