#288D9A#288D9A

#288D9A is a mid, moderate teal. Relative luminance 0.218; OKLCH L 59.3% C 0.091 H 207.7°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#288D9A
RGB	rgb(40, 141, 154)
HSL	hsl(187, 59%, 38%)
HSV	hsv(187, 74%, 60%)
CMYK	cmyk(74%, 8.4%, 0%, 39.6%)
CIE-LAB	lab(53.85, -23.68, -15.16)
CIE-LCH	lch(53.85, 28.11, 212.63°)
OKLab	oklab(59.3% -0.0803 -0.0421)
OKLCH	oklch(59.3% 0.091 207.7)
XYZ	xyz(16.2301, 21.8320, 33.9242)
Luminance	0.2183 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288D9A #9A3528

analogous

#289A6E #288D9A #28549A

triadic

#288D9A #9A288D #8D9A28

tetradic

#288D9A #6E289A #9A3528 #549A28

square

#288D9A #6E289A #9A3528 #549A28

split-complementary

#288D9A #9A2854 #9A6E28

monochromatic

#0F3439 #1B6169 #288D9A #35B9CA #65CAD7

Accessibility & contrast

On white

3.91

#288D9A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#288D9A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288D9A

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288D9A	#FFFFFF	#000000	##000000
##288D9A	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)

#80879B

Deuteranopia (green-blind)

#707C9A

Tritanopia (blue-blind)

#009491

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #288d9a;
/* rgb */ color: rgb(40, 141, 154);
/* oklch */ color: oklch(59.3% 0.091 207.7);

Tailwind

colors: {
  custom: {
    50: '#74aeb7',
    500: '#288d9a',
    950: '#000000',
  },
}

SCSS

$custom: #288d9a;
$custom-light: #74aeb7;
$custom-dark: #000000;

JSON

{
  "hex": "#288d9a",
  "rgb": {
    "r": 40,
    "g": 141,
    "b": 154
  },
  "hsl": {
    "h": 186.842,
    "s": 58.763,
    "l": 38.039
  },
  "oklch": {
    "l": 0.59297,
    "c": 0.09073,
    "h": 207.7
  },
  "luminance": 0.21834
}

Semantic roles & 50–950 ramp

primary

#288D9A

secondary

#BD6B61

accent

#5846E2

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #288D9A

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

Preview Lab → · Contrast checker → · Palette generator →