#288B99#288B99

#288B99 is a mid, moderate teal. Relative luminance 0.212; OKLCH L 58.7% C 0.090 H 208.8°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#288B99
RGB	rgb(40, 139, 153)
HSL	hsl(187, 59%, 38%)
HSV	hsv(187, 74%, 60%)
CMYK	cmyk(73.9%, 9.2%, 0%, 40%)
CIE-LAB	lab(53.18, -22.96, -15.59)
CIE-LCH	lch(53.18, 27.75, 214.17°)
OKLab	oklab(58.75% -0.0787 -0.0433)
OKLCH	oklch(58.75% 0.09 208.8)
XYZ	xyz(15.8550, 21.2144, 33.3900)
Luminance	0.2122 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#288B99 #993628

analogous

#28996F #288B99 #285299

triadic

#288B99 #99288B #8B9928

tetradic

#288B99 #6F2899 #993628 #529928

square

#288B99 #6F2899 #993628 #529928

split-complementary

#288B99 #992852 #996F28

monochromatic

#0F3338 #1B5F68 #288B99 #35B7CA #65C9D7

Accessibility & contrast

On white

4.01

#288B99 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#288B99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288B99

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##288B99	#FFFFFF	#000000	##000000
##288B99	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E869A

Deuteranopia (green-blind)

#6E7A99

Tritanopia (blue-blind)

#00928F

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #288b99;
/* rgb */ color: rgb(40, 139, 153);
/* oklch */ color: oklch(58.7% 0.090 208.8);

Tailwind

colors: {
  custom: {
    50: '#74adb7',
    500: '#288b99',
    950: '#000000',
  },
}

SCSS

$custom: #288b99;
$custom-light: #74adb7;
$custom-dark: #000000;

JSON

{
  "hex": "#288b99",
  "rgb": {
    "r": 40,
    "g": 139,
    "b": 153
  },
  "hsl": {
    "h": 187.434,
    "s": 58.549,
    "l": 37.843
  },
  "oklch": {
    "l": 0.58749,
    "c": 0.08986,
    "h": 208.8
  },
  "luminance": 0.21216
}

Semantic roles & 50–950 ramp

primary

#288B99

secondary

#BD6C60

accent

#5946E2

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #288B99

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

Preview Lab → · Contrast checker → · Palette generator →