#289CB3#289CB3

#289CB3 is a light, moderate teal. Relative luminance 0.275; OKLCH L 64.1% C 0.103 H 214.5°. Best body text is #000000 at 6.50:1 contrast (WCAG AA passes).

Color values

HEX#289CB3
RGBrgb(40, 156, 179)
HSLhsl(190, 63%, 43%)
HSVhsv(190, 78%, 70%)
CMYKcmyk(77.7%, 12.8%, 0%, 29.8%)
CIE-LABlab(59.42, -23.29, -20.95)
CIE-LCHlch(59.42, 31.33, 221.97°)
OKLaboklab(64.09% -0.0849 -0.0585)
OKLCHoklch(64.09% 0.103 214.5)
XYZxyz(20.8967, 27.4802, 46.8419)
Luminance0.2748 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#289CB3 #B33F28
analogous
#28B384 #289CB3 #2856B3
triadic
#289CB3 #B3289C #9CB328
tetradic
#289CB3 #8428B3 #B33F28 #56B328
square
#289CB3 #8428B3 #B33F28 #56B328
split-complementary
#289CB3 #B32856 #B38428
monochromatic
#12454F #1D7081 #289CB3 #43BDD5 #75CEE0

Accessibility & contrast

On white

3.23
#289CB3 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.50
#289CB3 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #289CB3
6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##289CB3#FFFFFF#000000##000000
##289CB31.003.236.506.50
#FFFFFF3.231.0021.0021.00
#0000006.5021.001.001.00
##0000006.5021.001.001.00

Color blindness preview

Protanopia (red-blind)
#8C97B4
Deuteranopia (green-blind)
#7989B3
Tritanopia (blue-blind)
#00A5A3
Achromatopsia (no color)
#8F8F8F

Design tokens & code

CSS
--color: #289cb3;
/* rgb */ color: rgb(40, 156, 179);
/* oklch */ color: oklch(64.1% 0.103 214.5);
Tailwind
colors: {
  custom: {
    50: '#79b9c9',
    500: '#289cb3',
    950: '#000000',
  },
}
SCSS
$custom: #289cb3;
$custom-light: #79b9c9;
$custom-dark: #000000;
JSON
{
  "hex": "#289cb3",
  "rgb": {
    "r": 40,
    "g": 156,
    "b": 179
  },
  "hsl": {
    "h": 189.928,
    "s": 63.47,
    "l": 42.941
  },
  "oklch": {
    "l": 0.6409,
    "c": 0.10311,
    "h": 214.5
  },
  "luminance": 0.27483
}

Semantic roles & 50–950 ramp

primary
#289CB3
secondary
#C87E6F
accent
#5D41E6
background
#F8FBFC
surface
#EFF6F8
border
#CAD0D1
text
#0B1113
muted
#7C8082

Preview Lab

Preview with #289CB3

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

Preview Lab → · Contrast checker → · Palette generator →

#289CB3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva