#288B8F#288B8F

#288B8F is a mid, moderate teal. Relative luminance 0.209; OKLCH L 58.4% C 0.088 H 199.0°. Best body text is #000000 at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#288B8F
RGB	rgb(40, 139, 143)
HSL	hsl(182, 56%, 36%)
HSV	hsv(182, 72%, 56%)
CMYK	cmyk(72%, 2.8%, 0%, 43.9%)
CIE-LAB	lab(52.84, -26.13, -10.32)
CIE-LCH	lch(52.84, 28.10, 201.55°)
OKLab	oklab(58.35% -0.0831 -0.0286)
OKLCH	oklch(58.35% 0.088 199)
XYZ	xyz(15.0634, 20.8978, 29.2211)
Luminance	0.2090 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B8F #8F2C28

analogous

#288F5F #288B8F #28578F

triadic

#288B8F #8F288B #8B8F28

tetradic

#288B8F #5F288F #8F2C28 #578F28

square

#288B8F #5F288F #8F2C28 #578F28

split-complementary

#288B8F #8F2857 #8F5F28

monochromatic

#0D2E2F #1B5D5F #288B8F #35B9BF #5FCED2

Accessibility & contrast

On white

4.05

#288B8F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.18

#288B8F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B8F

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B8F	#FFFFFF	#000000	##000000
##288B8F	1.00	4.05	5.18	5.18
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.18	21.00	1.00	1.00
##000000	5.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#81858F

Deuteranopia (green-blind)

#727990

Tritanopia (blue-blind)

#00908C

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #288b8f;
/* rgb */ color: rgb(40, 139, 143);
/* oklch */ color: oklch(58.4% 0.088 199.0);

Tailwind

colors: {
  custom: {
    50: '#73adaf',
    500: '#288b8f',
    950: '#000000',
  },
}

SCSS

$custom: #288b8f;
$custom-light: #73adaf;
$custom-dark: #000000;

JSON

{
  "hex": "#288b8f",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 143
  },
  "hsl": {
    "h": 182.33,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.58354,
    "c": 0.08794,
    "h": 199
  },
  "luminance": 0.209
}

Semantic roles & 50–950 ramp

primary

#288B8F

secondary

#B85F5B

accent

#4E48E0

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#091010

muted

#7B7F7F

Preview Lab

Preview with #288B8F

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

Preview Lab → · Contrast checker → · Palette generator →