#51B1BF#51B1BF

#51B1BF is a light, moderate teal. Relative luminance 0.370; OKLCH L 70.8% C 0.092 H 208.2°. Best body text is #000000 at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#51B1BF
RGB	rgb(81, 177, 191)
HSL	hsl(188, 46%, 53%)
HSV	hsv(188, 58%, 75%)
CMYK	cmyk(57.6%, 7.3%, 0%, 25.1%)
CIE-LAB	lab(67.24, -24.08, -15.67)
CIE-LCH	lch(67.24, 28.73, 213.07°)
OKLab	oklab(70.83% -0.081 -0.0434)
OKLCH	oklch(70.83% 0.092 208.2)
XYZ	xyz(28.5156, 36.9524, 54.9099)
Luminance	0.3695 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B1BF #BF5F51

analogous

#51BF96 #51B1BF #517ABF

triadic

#51B1BF #BF51B1 #B1BF51

tetradic

#51B1BF #9651BF #BF5F51 #7ABF51

square

#51B1BF #9651BF #BF5F51 #7ABF51

split-complementary

#51B1BF #BF517A #BF9651

monochromatic

#28656D #398E9A #51B1BF #7EC5CF #AAD9E0

Accessibility & contrast

On white

2.50

#51B1BF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.39

#51B1BF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B1BF

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B1BF	#FFFFFF	#000000	##000000
##51B1BF	1.00	2.50	8.39	8.39
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.39	21.00	1.00	1.00
##000000	8.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A3ABC0

Deuteranopia (green-blind)

#939EBF

Tritanopia (blue-blind)

#00B8B5

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #51b1bf;
/* rgb */ color: rgb(81, 177, 191);
/* oklch */ color: oklch(70.8% 0.092 208.2);

Tailwind

colors: {
  custom: {
    50: '#8cc8d2',
    500: '#51b1bf',
    950: '#000000',
  },
}

SCSS

$custom: #51b1bf;
$custom-light: #8cc8d2;
$custom-dark: #000000;

JSON

{
  "hex": "#51b1bf",
  "rgb": {
    "r": 81,
    "g": 177,
    "b": 191
  },
  "hsl": {
    "h": 187.636,
    "s": 46.218,
    "l": 53.333
  },
  "oklch": {
    "l": 0.7083,
    "c": 0.09188,
    "h": 208.2
  },
  "luminance": 0.36955
}

Semantic roles & 50–950 ramp

primary

#51B1BF

secondary

#CEA49E

accent

#6352D6

background

#F9FCFC

surface

#F1F8F9

border

#CBD1D2

text

#0D1314

muted

#7E8282

Preview Lab

Preview with #51B1BF

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

Preview Lab → · Contrast checker → · Palette generator →