#51BFD2#51BFD2

#51BFD2 is a light, moderate teal. Relative luminance 0.437; OKLCH L 74.9% C 0.103 H 210.7°. Best body text is #000000 at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#51BFD2
RGB	rgb(81, 191, 210)
HSL	hsl(189, 59%, 57%)
HSV	hsv(189, 61%, 82%)
CMYK	cmyk(61.4%, 9%, 0%, 17.6%)
CIE-LAB	lab(72.00, -25.59, -18.90)
CIE-LCH	lch(72.00, 31.82, 216.45°)
OKLab	oklab(74.87% -0.0883 -0.0524)
OKLCH	oklch(74.87% 0.103 210.7)
XYZ	xyz(33.6522, 43.6606, 67.6141)
Luminance	0.4366 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BFD2 #D26451

analogous

#51D2A4 #51BFD2 #517FD2

triadic

#51BFD2 #D251BF #BFD251

tetradic

#51BFD2 #A451D2 #D26451 #7FD251

square

#51BFD2 #A451D2 #D26451 #7FD251

split-complementary

#51BFD2 #D2517F #D2A451

monochromatic

#237786 #2FA3B7 #51BFD2 #82D1DF #B2E3EB

Accessibility & contrast

On white

2.16

#51BFD2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.73

#51BFD2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BFD2

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BFD2	#FFFFFF	#000000	##000000
##51BFD2	1.00	2.16	9.73	9.73
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.73	21.00	1.00	1.00
##000000	9.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AFB9D3

Deuteranopia (green-blind)

#9CAAD2

Tritanopia (blue-blind)

#00C7C5

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #51bfd2;
/* rgb */ color: rgb(81, 191, 210);
/* oklch */ color: oklch(74.9% 0.103 210.7);

Tailwind

colors: {
  custom: {
    50: '#8fd2df',
    500: '#51bfd2',
    950: '#000000',
  },
}

SCSS

$custom: #51bfd2;
$custom-light: #8fd2df;
$custom-dark: #000000;

JSON

{
  "hex": "#51bfd2",
  "rgb": {
    "r": 81,
    "g": 191,
    "b": 210
  },
  "hsl": {
    "h": 188.837,
    "s": 58.904,
    "l": 57.059
  },
  "oklch": {
    "l": 0.74867,
    "c": 0.10266,
    "h": 210.7
  },
  "luminance": 0.43664
}

Semantic roles & 50–950 ramp

primary

#51BFD2

secondary

#DAADA5

accent

#5D46E2

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0E1415

muted

#7E8283

Preview Lab

Preview with #51BFD2

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

Preview Lab → · Contrast checker → · Palette generator →