#288A9B#288A9B

#288A9B is a mid, moderate teal. Relative luminance 0.210; OKLCH L 58.6% C 0.090 H 211.8°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX#288A9B
RGBrgb(40, 138, 155)
HSLhsl(189, 59%, 38%)
HSVhsv(189, 74%, 61%)
CMYKcmyk(74.2%, 11%, 0%, 39.2%)
CIE-LABlab(52.94, -21.79, -17.11)
CIE-LCHlch(52.94, 27.71, 218.14°)
OKLaboklab(58.58% -0.0768 -0.0476)
OKLCHoklch(58.58% 0.09 211.8)
XYZxyz(15.8774, 20.9928, 34.2192)
Luminance0.2099 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#288A9B #9B3928
analogous
#289B72 #288A9B #28509B
triadic
#288A9B #9B288A #8A9B28
tetradic
#288A9B #72289B #9B3928 #509B28
square
#288A9B #72289B #9B3928 #509B28
split-complementary
#288A9B #9B2850 #9B7228
monochromatic
#0F333A #1B5F6A #288A9B #35B5CB #66C7D7

Accessibility & contrast

On white

4.04
#288A9B on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.20
#288A9B on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #288A9B
5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##288A9B#FFFFFF#000000##000000
##288A9B1.004.045.205.20
#FFFFFF4.041.0021.0021.00
#0000005.2021.001.001.00
##0000005.2021.001.001.00

Color blindness preview

Protanopia (red-blind)
#7D859C
Deuteranopia (green-blind)
#6D799B
Tritanopia (blue-blind)
#00918F
Achromatopsia (no color)
#7E7E7E

Design tokens & code

CSS
--color: #288a9b;
/* rgb */ color: rgb(40, 138, 155);
/* oklch */ color: oklch(58.6% 0.090 211.8);
Tailwind
colors: {
  custom: {
    50: '#74acb8',
    500: '#288a9b',
    950: '#000000',
  },
}
SCSS
$custom: #288a9b;
$custom-light: #74acb8;
$custom-dark: #000000;
JSON
{
  "hex": "#288a9b",
  "rgb": {
    "r": 40,
    "g": 138,
    "b": 155
  },
  "hsl": {
    "h": 188.87,
    "s": 58.974,
    "l": 38.235
  },
  "oklch": {
    "l": 0.58578,
    "c": 0.0904,
    "h": 211.8
  },
  "luminance": 0.20995
}

Semantic roles & 50–950 ramp

primary
#288A9B
secondary
#BD6F61
accent
#5D46E2
background
#F7FAFB
surface
#EEF4F6
border
#C9CED0
text
#091011
muted
#7B7F80

Preview Lab

Preview with #288A9B

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

Preview Lab → · Contrast checker → · Palette generator →

#288A9B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva