#288D9C#288D9C

#288D9C is a mid, moderate teal. Relative luminance 0.219; OKLCH L 59.4% C 0.091 H 209.6°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#288D9C
RGB	rgb(40, 141, 156)
HSL	hsl(188, 59%, 38%)
HSV	hsv(188, 74%, 61%)
CMYK	cmyk(74.4%, 9.6%, 0%, 38.8%)
CIE-LAB	lab(53.92, -23.03, -16.20)
CIE-LCH	lch(53.92, 28.16, 215.13°)
OKLab	oklab(59.38% -0.0795 -0.0451)
OKLCH	oklch(59.38% 0.091 209.6)
XYZ	xyz(16.3981, 21.8992, 34.8088)
Luminance	0.2190 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288D9C #9C3728

analogous

#289C71 #288D9C #28539C

triadic

#288D9C #9C288D #8D9C28

tetradic

#288D9C #71289C #9C3728 #539C28

square

#288D9C #71289C #9C3728 #539C28

split-complementary

#288D9C #9C2853 #9C7128

monochromatic

#0F353B #1C616B #288D9C #36B8CB #67C9D8

Accessibility & contrast

On white

3.90

#288D9C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#288D9C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288D9C

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288D9C	#FFFFFF	#000000	##000000
##288D9C	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#80889D

Deuteranopia (green-blind)

#707C9C

Tritanopia (blue-blind)

#009491

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #288d9c;
/* rgb */ color: rgb(40, 141, 156);
/* oklch */ color: oklch(59.4% 0.091 209.6);

Tailwind

colors: {
  custom: {
    50: '#74aeb9',
    500: '#288d9c',
    950: '#000000',
  },
}

SCSS

$custom: #288d9c;
$custom-light: #74aeb9;
$custom-dark: #000000;

JSON

{
  "hex": "#288d9c",
  "rgb": {
    "r": 40,
    "g": 141,
    "b": 156
  },
  "hsl": {
    "h": 187.759,
    "s": 59.184,
    "l": 38.431
  },
  "oklch": {
    "l": 0.59379,
    "c": 0.09138,
    "h": 209.6
  },
  "luminance": 0.21901
}

Semantic roles & 50–950 ramp

primary

#288D9C

secondary

#BE6E62

accent

#5A45E2

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #288D9C

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

Preview Lab → · Contrast checker → · Palette generator →