#51E5F6#51E5F6

#51E5F6 is a very light, vivid teal. Relative luminance 0.644; OKLCH L 85.1% C 0.125 H 206.1°. Best body text is #000000 at 13.89:1 contrast (WCAG AA passes).

Color values

HEX	#51E5F6
RGB	rgb(81, 229, 246)
HSL	hsl(186, 90%, 64%)
HSV	hsv(186, 67%, 96%)
CMYK	cmyk(67.1%, 6.9%, 0%, 3.5%)
CIE-LAB	lab(84.19, -33.58, -19.75)
CIE-LCH	lch(84.19, 38.96, 210.46°)
OKLab	oklab(85.08% -0.1121 -0.0548)
OKLCH	oklch(85.08% 0.125 206.1)
XYZ	xyz(48.0400, 64.4363, 97.0765)
Luminance	0.6444 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E5F6 #F66251

analogous

#51F6B5 #51E5F6 #5193F6

triadic

#51E5F6 #F651E5 #E5F651

tetradic

#51E5F6 #B551F6 #F66251 #93F651

square

#51E5F6 #B551F6 #F66251 #93F651

split-complementary

#51E5F6 #F65193 #F6B551

monochromatic

#0AB0C3 #17DCF3 #51E5F6 #8BEEF9 #C5F6FC

Accessibility & contrast

On white

1.51

#51E5F6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.89

#51E5F6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E5F6

13.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E5F6	#FFFFFF	#000000	##000000
##51E5F6	1.00	1.51	13.89	13.89
#FFFFFF	1.51	1.00	21.00	21.00
#000000	13.89	21.00	1.00	1.00
##000000	13.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3DCF7

Deuteranopia (green-blind)

#BBCAF6

Tritanopia (blue-blind)

#00EEEA

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #51e5f6;
/* rgb */ color: rgb(81, 229, 246);
/* oklch */ color: oklch(85.1% 0.125 206.1);

Tailwind

colors: {
  custom: {
    50: '#96edf9',
    500: '#51e5f6',
    950: '#000000',
  },
}

SCSS

$custom: #51e5f6;
$custom-light: #96edf9;
$custom-dark: #000000;

JSON

{
  "hex": "#51e5f6",
  "rgb": {
    "r": 81,
    "g": 229,
    "b": 246
  },
  "hsl": {
    "h": 186.182,
    "s": 90.164,
    "l": 64.118
  },
  "oklch": {
    "l": 0.8508,
    "c": 0.12481,
    "h": 206.1
  },
  "luminance": 0.64442
}

Semantic roles & 50–950 ramp

primary

#51E5F6

secondary

#C03B2B

accent

#1800E6

background

#FCFFFF

surface

#F5FEFF

border

#CFD6D7

text

#0F1617

muted

#808585

Preview Lab

Preview with #51E5F6

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

Preview Lab → · Contrast checker → · Palette generator →