#288E8F#288E8F

#288E8F is a mid, moderate teal. Relative luminance 0.218; OKLCH L 59.1% C 0.090 H 196.0°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#288E8F
RGB	rgb(40, 142, 143)
HSL	hsl(181, 56%, 36%)
HSV	hsv(181, 72%, 56%)
CMYK	cmyk(72%, 0.7%, 0%, 43.9%)
CIE-LAB	lab(53.79, -27.63, -8.89)
CIE-LCH	lch(53.79, 29.03, 197.84°)
OKLab	oklab(59.13% -0.0863 -0.0247)
OKLCH	oklch(59.13% 0.09 196)
XYZ	xyz(15.5038, 21.7785, 29.3678)
Luminance	0.2178 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288E8F #8F2928

analogous

#288F5C #288E8F #285A8F

triadic

#288E8F #8F288E #8E8F28

tetradic

#288E8F #5C288F #8F2928 #5A8F28

square

#288E8F #5C288F #8F2928 #5A8F28

split-complementary

#288E8F #8F285A #8F5C28

monochromatic

#0D2F2F #1B5F5F #288E8F #35BDBF #5FD1D2

Accessibility & contrast

On white

3.92

#288E8F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#288E8F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288E8F

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288E8F	#FFFFFF	#000000	##000000
##288E8F	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#84878F

Deuteranopia (green-blind)

#757C90

Tritanopia (blue-blind)

#00938E

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #288e8f;
/* rgb */ color: rgb(40, 142, 143);
/* oklch */ color: oklch(59.1% 0.090 196.0);

Tailwind

colors: {
  custom: {
    50: '#73afaf',
    500: '#288e8f',
    950: '#000000',
  },
}

SCSS

$custom: #288e8f;
$custom-light: #73afaf;
$custom-dark: #000000;

JSON

{
  "hex": "#288e8f",
  "rgb": {
    "r": 40,
    "g": 142,
    "b": 143
  },
  "hsl": {
    "h": 180.583,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.59127,
    "c": 0.08977,
    "h": 196
  },
  "luminance": 0.2178
}

Semantic roles & 50–950 ramp

primary

#288E8F

secondary

#B85C5B

accent

#4A48E0

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#091010

muted

#7B7F7F

Preview Lab

Preview with #288E8F

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

Preview Lab → · Contrast checker → · Palette generator →