#51EFF6#51EFF6

#51EFF6 is a very light, vivid teal. Relative luminance 0.701; OKLCH L 87.4% C 0.129 H 199.4°. Best body text is #000000 at 15.03:1 contrast (WCAG AA passes).

Color values

HEX	#51EFF6
RGB	rgb(81, 239, 246)
HSL	hsl(183, 90%, 64%)
HSV	hsv(183, 67%, 96%)
CMYK	cmyk(67.1%, 2.8%, 0%, 3.5%)
CIE-LAB	lab(87.06, -38.23, -15.43)
CIE-LCH	lch(87.06, 41.22, 201.98°)
OKLab	oklab(87.4% -0.1218 -0.0428)
OKLCH	oklch(87.4% 0.129 199.4)
XYZ	xyz(50.8870, 70.1303, 98.0255)
Luminance	0.7014 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51EFF6 #F65851

analogous

#51F6AA #51EFF6 #519DF6

triadic

#51EFF6 #F651EF #EFF651

tetradic

#51EFF6 #AA51F6 #F65851 #9DF651

square

#51EFF6 #AA51F6 #F65851 #9DF651

split-complementary

#51EFF6 #F6519D #F6AA51

monochromatic

#0ABBC3 #17EAF3 #51EFF6 #8BF4F9 #C5FAFC

Accessibility & contrast

On white

1.40

#51EFF6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.03

#51EFF6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51EFF6

15.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51EFF6	#FFFFFF	#000000	##000000
##51EFF6	1.00	1.40	15.03	15.03
#FFFFFF	1.40	1.00	21.00	21.00
#000000	15.03	21.00	1.00	1.00
##000000	15.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEE4F7

Deuteranopia (green-blind)

#C6D2F7

Tritanopia (blue-blind)

#00F7F1

Achromatopsia (no color)

#DADADA

Design tokens & code

CSS

--color: #51eff6;
/* rgb */ color: rgb(81, 239, 246);
/* oklch */ color: oklch(87.4% 0.129 199.4);

Tailwind

colors: {
  custom: {
    50: '#97f4f9',
    500: '#51eff6',
    950: '#000000',
  },
}

SCSS

$custom: #51eff6;
$custom-light: #97f4f9;
$custom-dark: #000000;

JSON

{
  "hex": "#51eff6",
  "rgb": {
    "r": 81,
    "g": 239,
    "b": 246
  },
  "hsl": {
    "h": 182.545,
    "s": 90.164,
    "l": 64.118
  },
  "oklch": {
    "l": 0.87398,
    "c": 0.12912,
    "h": 199.4
  },
  "luminance": 0.70136
}

Semantic roles & 50–950 ramp

primary

#51EFF6

secondary

#C0322B

accent

#0A00E6

background

#FCFFFF

surface

#F6FEFF

border

#D0D6D7

text

#0F1717

muted

#808585

Preview Lab

Preview with #51EFF6

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

Preview Lab → · Contrast checker → · Palette generator →