#218F8B#218F8B

#218F8B is a mid, moderate teal. Relative luminance 0.218; OKLCH L 59.1% C 0.094 H 191.2°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#218F8B
RGB	rgb(33, 143, 139)
HSL	hsl(178, 63%, 35%)
HSV	hsv(178, 77%, 56%)
CMYK	cmyk(76.9%, 0%, 2.8%, 43.9%)
CIE-LAB	lab(53.85, -30.22, -6.51)
CIE-LCH	lch(53.85, 30.91, 192.16°)
OKLab	oklab(59.09% -0.0919 -0.0182)
OKLCH	oklch(59.09% 0.094 191.2)
XYZ	xyz(15.1077, 21.8305, 27.8386)
Luminance	0.2183 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218F8B #8F2125

analogous

#218F54 #218F8B #215C8F

triadic

#218F8B #8B218F #8F8B21

tetradic

#218F8B #54218F #8F2125 #5C8F21

square

#218F8B #54218F #8F2125 #5C8F21

split-complementary

#218F8B #8F215C #8F5421

monochromatic

#0A2C2A #165D5B #218F8B #2CC1BB #53D7D3

Accessibility & contrast

On white

3.91

#218F8B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#218F8B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218F8B

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218F8B	#FFFFFF	#000000	##000000
##218F8B	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#86878B

Deuteranopia (green-blind)

#777C8C

Tritanopia (blue-blind)

#00938E

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #218f8b;
/* rgb */ color: rgb(33, 143, 139);
/* oklch */ color: oklch(59.1% 0.094 191.2);

Tailwind

colors: {
  custom: {
    50: '#71b0ac',
    500: '#218f8b',
    950: '#000000',
  },
}

SCSS

$custom: #218f8b;
$custom-light: #71b0ac;
$custom-dark: #000000;

JSON

{
  "hex": "#218f8b",
  "rgb": {
    "r": 33,
    "g": 143,
    "b": 139
  },
  "hsl": {
    "h": 177.818,
    "s": 62.5,
    "l": 34.51
  },
  "oklch": {
    "l": 0.59091,
    "c": 0.09372,
    "h": 191.2
  },
  "luminance": 0.21832
}

Semantic roles & 50–950 ramp

primary

#218F8B

secondary

#BB5155

accent

#4248E6

background

#F7FAFA

surface

#EDF5F4

border

#C8CFCE

text

#091010

muted

#7B7F7F

Preview Lab

Preview with #218F8B

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

Preview Lab → · Contrast checker → · Palette generator →