#288E8B#288E8B

#288E8B is a mid, moderate teal. Relative luminance 0.217; OKLCH L 59.0% C 0.090 H 192.1°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#288E8B
RGB	rgb(40, 142, 139)
HSL	hsl(178, 56%, 36%)
HSV	hsv(178, 72%, 56%)
CMYK	cmyk(71.8%, 0%, 2.1%, 44.3%)
CIE-LAB	lab(53.66, -28.84, -6.77)
CIE-LCH	lch(53.66, 29.63, 193.21°)
OKLab	oklab(58.98% -0.0882 -0.0189)
OKLCH	oklch(58.98% 0.09 192.1)
XYZ	xyz(15.2061, 21.6594, 27.8004)
Luminance	0.2166 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288E8B #8E282B

analogous

#288E58 #288E8B #285E8E

triadic

#288E8B #8B288E #8E8B28

tetradic

#288E8B #58288E #8E282B #5E8E28

square

#288E8B #58288E #8E282B #5E8E28

split-complementary

#288E8B #8E285E #8E5828

monochromatic

#0D2F2E #1B5E5C #288E8B #35BEBA #5FD2CE

Accessibility & contrast

On white

3.94

#288E8B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#288E8B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288E8B

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288E8B	#FFFFFF	#000000	##000000
##288E8B	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#85878B

Deuteranopia (green-blind)

#767C8C

Tritanopia (blue-blind)

#00928D

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #288e8b;
/* rgb */ color: rgb(40, 142, 139);
/* oklch */ color: oklch(59.0% 0.090 192.1);

Tailwind

colors: {
  custom: {
    50: '#73afac',
    500: '#288e8b',
    950: '#000000',
  },
}

SCSS

$custom: #288e8b;
$custom-light: #73afac;
$custom-dark: #000000;

JSON

{
  "hex": "#288e8b",
  "rgb": {
    "r": 40,
    "g": 142,
    "b": 139
  },
  "hsl": {
    "h": 178.235,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.58982,
    "c": 0.09015,
    "h": 192.1
  },
  "luminance": 0.21661
}

Semantic roles & 50–950 ramp

primary

#288E8B

secondary

#B75B5D

accent

#484DDF

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#091010

muted

#7B7F7F

Preview Lab

Preview with #288E8B

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

Preview Lab → · Contrast checker → · Palette generator →