#288C9A#288C9A

#288C9A is a mid, moderate teal. Relative luminance 0.215; OKLCH L 59.0% C 0.090 H 208.7°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#288C9A
RGB	rgb(40, 140, 154)
HSL	hsl(187, 59%, 38%)
HSV	hsv(187, 74%, 60%)
CMYK	cmyk(74%, 9.1%, 0%, 39.6%)
CIE-LAB	lab(53.53, -23.16, -15.63)
CIE-LCH	lch(53.53, 27.94, 214.02°)
OKLab	oklab(59.04% -0.0793 -0.0435)
OKLCH	oklch(59.04% 0.09 208.7)
XYZ	xyz(16.0834, 21.5385, 33.8753)
Luminance	0.2154 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288C9A #9A3628

analogous

#289A6F #288C9A #28539A

triadic

#288C9A #9A288C #8C9A28

tetradic

#288C9A #6F289A #9A3628 #539A28

square

#288C9A #6F289A #9A3628 #539A28

split-complementary

#288C9A #9A2853 #9A6F28

monochromatic

#0F3439 #1B6069 #288C9A #35B8CA #65C9D7

Accessibility & contrast

On white

3.96

#288C9A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#288C9A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288C9A

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288C9A	#FFFFFF	#000000	##000000
##288C9A	1.00	3.96	5.31	5.31
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F879B

Deuteranopia (green-blind)

#6F7B9A

Tritanopia (blue-blind)

#009390

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #288c9a;
/* rgb */ color: rgb(40, 140, 154);
/* oklch */ color: oklch(59.0% 0.090 208.7);

Tailwind

colors: {
  custom: {
    50: '#74aeb7',
    500: '#288c9a',
    950: '#000000',
  },
}

SCSS

$custom: #288c9a;
$custom-light: #74aeb7;
$custom-dark: #000000;

JSON

{
  "hex": "#288c9a",
  "rgb": {
    "r": 40,
    "g": 140,
    "b": 154
  },
  "hsl": {
    "h": 187.368,
    "s": 58.763,
    "l": 38.039
  },
  "oklch": {
    "l": 0.59043,
    "c": 0.09046,
    "h": 208.7
  },
  "luminance": 0.2154
}

Semantic roles & 50–950 ramp

primary

#288C9A

secondary

#BD6C61

accent

#5946E2

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #288C9A

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

Preview Lab → · Contrast checker → · Palette generator →