#51BFCF#51BFCF

#51BFCF is a light, moderate teal. Relative luminance 0.435; OKLCH L 74.8% C 0.102 H 208.3°. Best body text is #000000 at 9.70:1 contrast (WCAG AA passes).

Color values

HEX	#51BFCF
RGB	rgb(81, 191, 207)
HSL	hsl(188, 57%, 56%)
HSV	hsv(188, 61%, 81%)
CMYK	cmyk(60.9%, 7.7%, 0%, 18.8%)
CIE-LAB	lab(71.90, -26.47, -17.42)
CIE-LCH	lch(71.90, 31.68, 213.35°)
OKLab	oklab(74.75% -0.0895 -0.0483)
OKLCH	oklch(74.75% 0.102 208.3)
XYZ	xyz(33.2819, 43.5125, 65.6641)
Luminance	0.4352 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BFCF #CF6151

analogous

#51CFA0 #51BFCF #5180CF

triadic

#51BFCF #CF51BF #BFCF51

tetradic

#51BFCF #A051CF #CF6151 #80CF51

square

#51BFCF #A051CF #CF6151 #80CF51

split-complementary

#51BFCF #CF5180 #CFA051

monochromatic

#247682 #31A1B2 #51BFCF #81D1DC #B1E2E9

Accessibility & contrast

On white

2.16

#51BFCF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.70

#51BFCF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BFCF

9.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BFCF	#FFFFFF	#000000	##000000
##51BFCF	1.00	2.16	9.70	9.70
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.70	21.00	1.00	1.00
##000000	9.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B0B8D0

Deuteranopia (green-blind)

#9DAACF

Tritanopia (blue-blind)

#00C7C4

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #51bfcf;
/* rgb */ color: rgb(81, 191, 207);
/* oklch */ color: oklch(74.8% 0.102 208.3);

Tailwind

colors: {
  custom: {
    50: '#8fd2dd',
    500: '#51bfcf',
    950: '#000000',
  },
}

SCSS

$custom: #51bfcf;
$custom-light: #8fd2dd;
$custom-dark: #000000;

JSON

{
  "hex": "#51bfcf",
  "rgb": {
    "r": 81,
    "g": 191,
    "b": 207
  },
  "hsl": {
    "h": 187.619,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.74754,
    "c": 0.10166,
    "h": 208.3
  },
  "luminance": 0.43516
}

Semantic roles & 50–950 ramp

primary

#51BFCF

secondary

#D8ABA4

accent

#5B48E0

background

#F9FCFD

surface

#F2F9FB

border

#CCD2D4

text

#0E1415

muted

#7E8283

Preview Lab

Preview with #51BFCF

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

Preview Lab → · Contrast checker → · Palette generator →