#288C99#288C99

#288C99 is a mid, moderate teal. Relative luminance 0.215; OKLCH L 59.0% C 0.090 H 207.8°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#288C99
RGB	rgb(40, 140, 153)
HSL	hsl(187, 59%, 38%)
HSV	hsv(187, 74%, 60%)
CMYK	cmyk(73.9%, 8.5%, 0%, 40%)
CIE-LAB	lab(53.50, -23.48, -15.11)
CIE-LCH	lch(53.50, 27.92, 212.76°)
OKLab	oklab(59% -0.0797 -0.042)
OKLCH	oklch(59% 0.09 207.8)
XYZ	xyz(16.0004, 21.5053, 33.4385)
Luminance	0.2151 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288C99 #993528

analogous

#28996E #288C99 #285399

triadic

#288C99 #99288C #8C9928

tetradic

#288C99 #6E2899 #993528 #539928

square

#288C99 #6E2899 #993528 #539928

split-complementary

#288C99 #992853 #996E28

monochromatic

#0F3338 #1B6068 #288C99 #35B8CA #65CAD7

Accessibility & contrast

On white

3.96

#288C99 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#288C99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288C99

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288C99	#FFFFFF	#000000	##000000
##288C99	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F869A

Deuteranopia (green-blind)

#707B99

Tritanopia (blue-blind)

#009290

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #288c99;
/* rgb */ color: rgb(40, 140, 153);
/* oklch */ color: oklch(59.0% 0.090 207.8);

Tailwind

colors: {
  custom: {
    50: '#74aeb7',
    500: '#288c99',
    950: '#000000',
  },
}

SCSS

$custom: #288c99;
$custom-light: #74aeb7;
$custom-dark: #000000;

JSON

{
  "hex": "#288c99",
  "rgb": {
    "r": 40,
    "g": 140,
    "b": 153
  },
  "hsl": {
    "h": 186.903,
    "s": 58.549,
    "l": 37.843
  },
  "oklch": {
    "l": 0.59003,
    "c": 0.09014,
    "h": 207.8
  },
  "luminance": 0.21507
}

Semantic roles & 50–950 ramp

primary

#288C99

secondary

#BD6B60

accent

#5846E2

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #288C99

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

Preview Lab → · Contrast checker → · Palette generator →