#288B9A#288B9A

#288B9A is a mid, moderate teal. Relative luminance 0.212; OKLCH L 58.8% C 0.090 H 209.8°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#288B9A
RGB	rgb(40, 139, 154)
HSL	hsl(188, 59%, 38%)
HSV	hsv(188, 74%, 60%)
CMYK	cmyk(74%, 9.7%, 0%, 39.6%)
CIE-LAB	lab(53.22, -22.64, -16.11)
CIE-LCH	lch(53.22, 27.79, 215.44°)
OKLab	oklab(58.79% -0.0783 -0.0448)
OKLCH	oklch(58.79% 0.09 209.8)
XYZ	xyz(15.9379, 21.2476, 33.8268)
Luminance	0.2125 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B9A #9A3728

analogous

#289A70 #288B9A #28529A

triadic

#288B9A #9A288B #8B9A28

tetradic

#288B9A #70289A #9A3728 #529A28

square

#288B9A #70289A #9A3728 #529A28

split-complementary

#288B9A #9A2852 #9A7028

monochromatic

#0F3339 #1B5F69 #288B9A #35B7CA #65C8D7

Accessibility & contrast

On white

4.00

#288B9A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#288B9A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B9A

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B9A	#FFFFFF	#000000	##000000
##288B9A	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E869B

Deuteranopia (green-blind)

#6E7A9A

Tritanopia (blue-blind)

#009290

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #288b9a;
/* rgb */ color: rgb(40, 139, 154);
/* oklch */ color: oklch(58.8% 0.090 209.8);

Tailwind

colors: {
  custom: {
    50: '#74adb7',
    500: '#288b9a',
    950: '#000000',
  },
}

SCSS

$custom: #288b9a;
$custom-light: #74adb7;
$custom-dark: #000000;

JSON

{
  "hex": "#288b9a",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 154
  },
  "hsl": {
    "h": 187.895,
    "s": 58.763,
    "l": 38.039
  },
  "oklch": {
    "l": 0.5879,
    "c": 0.09021,
    "h": 209.8
  },
  "luminance": 0.21249
}

Semantic roles & 50–950 ramp

primary

#288B9A

secondary

#BD6D61

accent

#5A46E2

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #288B9A

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

Preview Lab → · Contrast checker → · Palette generator →